diff --git a/src/constants/error-messages.js b/src/constants/error-messages.js
index d712e973..81f0fad0 100644
--- a/src/constants/error-messages.js
+++ b/src/constants/error-messages.js
@@ -34,7 +34,7 @@ const errorMessages = Object.freeze({
     VIN_FORMAT:
         // eslint-disable-next-line max-len
         'Invalid VIN. Please make sure that you entered the correct 17-digit, alpha-numeric number. VINs do not contain the letters I, O, or Q',
-    OPTION_REQUIRED: 'Please choose an option',
+    OPTION_REQUIRED: 'Please select an option',
     VEHICLE_REQUIRED: 'Please select a vehicle',
     POLICY_NUMBER_REQUIRED: 'Policy number is required.',
     POLICY_NUMBER_FORMAT: 'Please enter an alpha-numeric string',
diff --git a/src/digital-components/dropdown-question/dropdown-question.vue b/src/digital-components/dropdown-question/dropdown-question.vue
index 55636eef..0a25d34b 100644
--- a/src/digital-components/dropdown-question/dropdown-question.vue
+++ b/src/digital-components/dropdown-question/dropdown-question.vue
@@ -146,7 +146,7 @@ export default {
         background-size: 0.625rem 1rem;
         color: $gray-600;
         border-radius: $border-radius;
-        min-height: 3rem;
+        min-height: 2.8125rem;
         letter-spacing: inherit;
         box-shadow: $box-shadow-input;
         &:focus,
diff --git a/src/helpers/global-rule-definer.js b/src/helpers/global-rule-definer.js
index f5a2335b..5aca4f66 100644
--- a/src/helpers/global-rule-definer.js
+++ b/src/helpers/global-rule-definer.js
@@ -86,7 +86,7 @@ function defineGlobalPhoneNumberRules() {
 function defineGlobalExtensionRules() {
     defineRule(
         globalRules.EXTENSION_FORMAT,
-        regex(/^[0-9]{5}$/, errorMessages.EXTENSION_FORMAT)
+        regex(/^[0-9]{1,5}$/, errorMessages.EXTENSION_FORMAT)
     );
 }
 
diff --git a/src/iss-components/address-questions/address-questions.vue b/src/iss-components/address-questions/address-questions.vue
index fd18db94..a5ffd559 100644
--- a/src/iss-components/address-questions/address-questions.vue
+++ b/src/iss-components/address-questions/address-questions.vue
@@ -12,8 +12,7 @@
                     hasIcon
                     disableAutoFill
                     validationRules="street-address-required"
-                    @keydown.enter.prevent
-                    class="mb-4" />
+                    @keydown.enter.prevent />
             </div>
         </div>
         <transition
@@ -29,24 +28,22 @@
                             v-model="addressModel.streetAddress2"
                             cmsWidgetName="StreetAddress2QuestionWidget"
                             aria-haspopup=""
-                            inputId="streetAddress2Field"
-                            class="mb-4" />
+                            inputId="streetAddress2Field" />
                     </div>
                 </div>
                 <div
                     class="row"
                     aria-live="polite">
-                    <div class="col">
+                    <div class="col-lg-6">
                         <textboxQuestion
                             ref="city"
                             v-model="addressModel.city"
                             cmsWidgetName="CityQuestionWidget"
                             inputId="cbf28188fdf2436688fd735915f7ee56"
                             disableAutoFill
-                            validationRules="city-required"
-                            class="mb-4" />
+                            validationRules="city-required" />
                     </div>
-                    <div class="col">
+                    <div class="col-lg-6">
                         <dropdownQuestion
                             ref="state"
                             v-model="addressModel.state"
@@ -55,8 +52,7 @@
                             inputId="8fdf9dc2e13e430eb57529499dceb3eb"
                             :options="stateOptions"
                             disableAutoFill
-                            validationRules="state-required"
-                            class="mb-4" />
+                            validationRules="state-required" />
                     </div>
                 </div>
                 <div
@@ -70,8 +66,7 @@
                             inputId="01a9a1c2de0b4c9da8e023c9ae3be498"
                             mask="#####"
                             disableAutoFill
-                            validationRules="zip-code-required|zip-code-format"
-                            class="mb-4" />
+                            validationRules="zip-code-required|zip-code-format" />
                     </div>
                 </div>
             </div>
@@ -362,3 +357,12 @@ export default {
     }
 };
 </script>
+
+<style scoped lang="scss">
+.textbox-question {
+    margin-bottom: 1.25rem;
+}
+.dropdown-question {
+    margin-bottom: 1.25rem;
+}
+</style>
diff --git a/src/iss-components/site-footer/site-footer.vue b/src/iss-components/site-footer/site-footer.vue
index b73ab67a..d32d3313 100644
--- a/src/iss-components/site-footer/site-footer.vue
+++ b/src/iss-components/site-footer/site-footer.vue
@@ -24,8 +24,6 @@
                         "
                         :aria-disabled="disableForwardAction || isForwardActionDisabled"
                         :isDisabled="disableForwardAction || isForwardActionDisabled"
-                        data-bs-target="#footerModal"
-                        data-bs-dismiss="modal"
                         data-test-id="site-footer-main-button"
                         @clickEvent="buttonClick" />
                 </div>
@@ -36,8 +34,6 @@
                         linkType="navigation"
                         :text="backLink"
                         href="javascript:void(0)"
-                        data-bs-target="#footerModal"
-                        data-bs-dismiss="modal"
                         data-test-id="site-footer-back-button"
                         @clickEvent="linkClick" />
                 </div>
diff --git a/src/iss-components/site-header/menu-modal/menu-modal.spec.js b/src/iss-components/site-header/menu-modal/menu-modal.spec.js
deleted file mode 100644
index 9c0015cf..00000000
--- a/src/iss-components/site-header/menu-modal/menu-modal.spec.js
+++ /dev/null
@@ -1,50 +0,0 @@
-import { mount, shallowMount } from '@vue/test-utils';
-import menuModal from '@/iss-components/site-header/menu-modal/menu-modal.vue';
-
-describe('menu-modal.vue', () => {
-    it('Should return text Footer Navigation', async () => {
-        // Act
-        const wrapper = shallowMount(menuModal);
-
-        // Assert
-        const footerModalLabel = wrapper.find('h5');
-
-        // Expect
-        expect(footerModalLabel.text()).toContain('Footer Navigation');
-    });
-
-    it('Should return footer text as Safelite Group', async () => {
-        // Act
-        const wrapper = shallowMount(menuModal);
-
-        // Assert
-        const modalFooter = wrapper.find('div.modal-footer');
-
-        // Expect
-        expect(modalFooter.text()).toContain('Safelite Group');
-    });
-
-    it('Should return Terms of use text link text', async () => {
-        // Act
-        const wrapper = shallowMount(menuModal);
-
-        // Expect
-        expect(wrapper.html()).toContain('Terms of service');
-    });
-
-    it('Should return "Your privacy choices" text link text', async () => {
-        // Act
-        const wrapper = mount(menuModal);
-
-        // Expect
-        expect(wrapper.html()).toContain('Your privacy choices');
-    });
-
-    it('Should return Warranty text link text', async () => {
-        // Act
-        const wrapper = shallowMount(menuModal);
-
-        // Expect
-        expect(wrapper.html()).toContain('Warranty');
-    });
-});
diff --git a/src/iss-components/site-header/menu-modal/menu-modal.vue b/src/iss-components/site-header/menu-modal/menu-modal.vue
deleted file mode 100644
index 0abfb855..00000000
--- a/src/iss-components/site-header/menu-modal/menu-modal.vue
+++ /dev/null
@@ -1,232 +0,0 @@
-<template>
-    <div class="menu-modal-container">
-        <button
-            class="menu-button"
-            type="button"
-            :class="[isActive ? 'active' : '']"
-            aria-label="Hamburger Menu (modal window)"
-            @click="toggleModal">
-            <div class="bar1"></div>
-            <div class="bar2"></div>
-            <div class="bar3"></div>
-        </button>
-    </div>
-    <div class="menu-modal-container">
-        <button
-            aria-hidden="true"
-            tabindex="-1"
-            class="menu-button"
-            type="button"
-            :class="[isActive ? 'active' : '']"
-            aria-label="Hamburger Menu (modal window)"
-            @click="toggleModal">
-            <div class="bar1"></div>
-            <div class="bar2"></div>
-            <div class="bar3"></div>
-        </button>
-    </div>
-    <!-- Modal -->
-    <div
-        id="footerModal"
-        class="modal menu-modal fade"
-        data-bs-backdrop="false"
-        tabindex="-1"
-        aria-labelledby="footerModalLabel"
-        aria-hidden="true"
-        v-on="{ 'show.bs.modal': show, 'hide.bs.modal': hide }">
-        <div class="modal-dialog modal-fullscreen">
-            <div class="modal-content">
-                <div class="modal-header visually-hidden">
-                    <h5 id="footerModalLabel" class="modal-title">
-                        Footer Navigation
-                    </h5>
-                </div>
-                <div class="modal-body d-flex flex-column">
-                    <textLink
-                        linkType="newWindowLink"
-                        text="Terms of service"
-                        href="//www.safelite.com/terms-of-use"
-                        target="_blank" />
-                    <textLink
-                        linkType="newWindowLink"
-                        text="Your privacy choices"
-                        href="//www.safelite.com/privacy-center"
-                        target="_blank">
-                        <template #after-text>
-                            <img
-                                class="ccpa-icon"
-                                src="~@/assets/img/icons/ccpa-icon.svg"
-                                alt="Your privacy choices" />
-                        </template>
-                    </textLink>
-                    <textLink
-                        linkType="newWindowLink"
-                        text="Warranty"
-                        href="//www.safelite.com/national-lifetime-warranty"
-                        target="_blank" />
-                    <textLink
-                        linkType="newWindowLink"
-                        text="Notice at collection"
-                        href="https://www.safelite.com/ccpa-privacy-policy"
-                        target="_blank" />
-                </div>
-                <div class="modal-footer d-flex justify-content-start">
-                    &copy; {{ new Date().getFullYear() }} Safelite Group
-                </div>
-            </div>
-        </div>
-    </div>
-</template>
-
-<script>
-import textLink from '@/ux-components/text-link/text-link';
-import { Modal } from 'bootstrap';
-import baseMixin from '@/mixins/base-mixin.js';
-
-export default {
-    name: 'menu-modal',
-    components: {
-        textLink,
-    },
-    data() {
-        return {
-            isActive: false,
-        };
-    },
-    methods: {
-        toggleModal() {
-            if (this.isActive) {
-                this.closeModal();
-            } else {
-                this.openModal();
-            }
-        },
-        openModal() {
-            Modal.getOrCreateInstance(
-                document.getElementById('footerModal')
-            ).show();
-        },
-        closeModal() {
-            Modal.getInstance(document.getElementById('footerModal')).hide();
-        },
-        show() {
-            this.isActive = true;
-            window.scrollTo({ top: 0, left: 0, behavior: 'smooth' });
-        },
-        hide() {
-            const self = this;
-            self.isActive = false;
-        },
-    },
-};
-</script>
-
-<style lang="scss" scoped>
-.menu-modal-container {
-    position: absolute;
-    padding: 1.47rem 0.5rem 1.47rem 1.47rem;
-    right: 0;
-    button {
-        border: none;
-        &.menu-button {
-            width: 1.5rem;
-            height: 1.5rem;
-            border-radius: 50%;
-            box-shadow: 0 2px 8px 0 rgba(0, 0, 0, 0.2);
-            background-color: $white;
-            position: relative;
-            display: flex;
-            flex-direction: column;
-            justify-content: center;
-            align-items: center;
-            padding: 0; //Required to prevent 'squish' on iPhone
-            z-index: 1050;
-            .bar1,
-            .bar2,
-            .bar3 {
-                width: 14px;
-                height: 2px;
-                background-color: $blue;
-                margin: 1px 0;
-                transition: 0.25s;
-            }
-            &.active .bar1 {
-                transform: rotate(-45deg) translate(-3px, 3px);
-            }
-            &.active .bar2 {
-                opacity: 0;
-            }
-            &.active .bar3 {
-                transform: rotate(45deg) translate(-3px, -3px);
-            }
-        }
-    }
-}
-.modal {
-    &.menu-modal {
-        left: auto;
-        height: calc(100% - 56px);
-        top: 56px;
-        border-top: 1px solid $gray-300;
-        overflow-x: visible;
-        overflow-y: visible;
-        .modal-body {
-            padding: 2rem;
-            .ccpa-icon {
-                width: 2.0625rem;
-                height: 1rem;
-                margin-left: 0.5rem;
-            }
-        }
-        .modal-fullscreen {
-            width: 100vw;
-        }
-        .modal-footer {
-            border-top: none;
-            padding: 2rem;
-        }
-        .menu-modal-container {
-            position: absolute;
-            padding: 1.47rem 0 1.47rem 1.47rem;
-            right: 0;
-            top: -5rem;
-            button {
-                border: none;
-                &.menu-button {
-                    width: 1.5rem;
-                    height: 1.5rem;
-                    border-radius: 50%;
-                    box-shadow: none;
-                    background-color: $white;
-                    position: relative;
-                    display: flex;
-                    flex-direction: column;
-                    justify-content: center;
-                    align-items: center;
-                    padding: 0; //Required to prevent 'squish' on iPhone
-                    z-index: 1056;
-                    .bar1,
-                    .bar2,
-                    .bar3 {
-                        width: 14px;
-                        height: 2px;
-                        background-color: $blue;
-                        margin: 1px 0;
-                        transition: 0.25s;
-                    }
-                    &.active .bar1 {
-                        transform: rotate(-45deg) translate(-3px, 3px);
-                    }
-                    &.active .bar2 {
-                        opacity: 0;
-                    }
-                    &.active .bar3 {
-                        transform: rotate(45deg) translate(-3px, -3px);
-                    }
-                }
-            }
-        }
-        //.modal-backdrop styles are in common-styles.scss
-    }
-}
-</style>
diff --git a/src/layouts/policy-holder-details/policy-holder-details.vue b/src/layouts/policy-holder-details/policy-holder-details.vue
index 08ef0dc7..23f938eb 100644
--- a/src/layouts/policy-holder-details/policy-holder-details.vue
+++ b/src/layouts/policy-holder-details/policy-holder-details.vue
@@ -14,7 +14,7 @@
                         id="sub-header"
                         cmsWidgetName="SiteSubHeaderWidget"
                         class="mt-4" />
-                    <div class="row mb-4">
+                    <div class="row">
                         <div class="col">
                             <textboxQuestion
                                 ref="policyHolderFirstName"
@@ -36,8 +36,8 @@
                                 :validationRules="rules.lastName" />
                         </div>
                     </div>
-                    <div class="row mb-4">
-                        <div class="col-md-8">
+                    <div class="row">
+                        <div class="col-lg-8">
                             <textboxQuestion
                                 ref="phoneNumber"
                                 v-model="customerQuestions.phoneNumber"
@@ -48,13 +48,14 @@
                                 :mask="phoneMask"
                                 disableAutoFill />
                         </div>
-                        <div class="col-md-4">
+                        <div class="col-lg-4">
                             <textboxQuestion
                                 ref="extension"
                                 v-model="customerQuestions.extension"
                                 inputId="extensionField"
                                 cmsWidgetName="ExtensionQuestion"
                                 :validationRules="rules.extension"
+                                maxLength="5"
                                 disableAutoFill />
                         </div>
                     </div>
@@ -65,8 +66,7 @@
                         cmsWidgetName="EmailAddressQuestion"
                         :validationRules="rules.email"
                         isRequired
-                        disableAutoFill
-                        class="mb-4" />
+                        disableAutoFill />
                     <addressQuestions
                         id="address-questions-wrapper"
                         ref="addressQuestions"
@@ -228,4 +228,10 @@ export default {
 #address-questions-wrapper .form-test-error {
     line-height: 24px;
 }
+.textbox-question {
+    margin-bottom: 1.25rem;
+}
+.dropdown-question {
+    margin-bottom: 1.25rem;
+}
 </style>
diff --git a/src/layouts/policy-vehicles/policy-vehicles.vue b/src/layouts/policy-vehicles/policy-vehicles.vue
index 26398ada..e6493075 100644
--- a/src/layouts/policy-vehicles/policy-vehicles.vue
+++ b/src/layouts/policy-vehicles/policy-vehicles.vue
@@ -322,6 +322,9 @@ export default {
             }
         }
     }
+    .form-test-error {
+        text-align: left
+    }
 }
 
 .list-button-content {
diff --git a/src/layouts/tpa-submit/contact-details-drawer/contact-details-drawer.vue b/src/layouts/tpa-submit/contact-details-drawer/contact-details-drawer.vue
index 9c94782a..7d5b0572 100644
--- a/src/layouts/tpa-submit/contact-details-drawer/contact-details-drawer.vue
+++ b/src/layouts/tpa-submit/contact-details-drawer/contact-details-drawer.vue
@@ -49,6 +49,7 @@
                 inputId="extension"
                 :cmsWidgetName="widget.extensionQuestion"
                 disableAutoFill
+                maxLength="5"
                 :validationRules="rules.extension" />
         </template>
     </modal>
diff --git a/src/layouts/welcome-page/welcome-page.vue b/src/layouts/welcome-page/welcome-page.vue
index 2a9293c1..4f0a38ee 100644
--- a/src/layouts/welcome-page/welcome-page.vue
+++ b/src/layouts/welcome-page/welcome-page.vue
@@ -39,6 +39,7 @@
                         inputId="extensionField"
                         cmsWidgetName="ExtensionQuestion"
                         :validationRules="rules.extension"
+                        maxLength="5"
                         disableAutoFill
                         class="form-group" />
                     <textboxQuestion
diff --git a/src/store/index.js b/src/store/index.js
index 3a9a37bd..daa02d03 100644
--- a/src/store/index.js
+++ b/src/store/index.js
@@ -2293,7 +2293,8 @@ export const useMainStore = defineStore({
             this.order.serviceLocation.zipCode = welcomePageModel?.policyZipCode;
             this.updatePhoneNumbers({
                 home: welcomePageModel?.phoneNumber,
-                service: welcomePageModel?.phoneNumber
+                service: welcomePageModel?.phoneNumber,
+                extension: welcomePageModel?.extension
             });
         },
         updatePolicyHolderDetails(customerQuestions) {
@@ -2305,6 +2306,11 @@ export const useMainStore = defineStore({
             this.order.customer.firstName = customerQuestions.firstName;
             this.order.customer.lastName = customerQuestions.lastName;
             this.order.customer.emailAddress = customerQuestions.email;
+            this.updatePhoneNumbers({
+                home: customerQuestions.phoneNumber,
+                service: customerQuestions.phoneNumber,
+                extension: customerQuestions.extension
+            });
             this.order.serviceLocation.zipCode = customerQuestions.addressQuestions.zipCode;
         },
         updateIsSafeliteProvider(isSafelite) {
diff --git a/src/styles/common-styles.scss b/src/styles/common-styles.scss
index 4f01dc5a..c5861ac9 100644
--- a/src/styles/common-styles.scss
+++ b/src/styles/common-styles.scss
@@ -22,44 +22,6 @@ body {
             flex-direction: column;
             padding: 0 1.5rem;
         }
-
-        // Set max-width on columns to prevent overly-wide
-        // components on extra wide screens.
-        .col-md-6 {
-            max-width: 472px;
-
-            @include media-breakpoint-up(xl) {
-                max-width: 708px;
-            }
-
-            .col {
-                max-width: 236px;
-
-                &.one-list-card-width {
-                    max-width: 472px;
-
-                    @include media-breakpoint-up(xl) {
-                        max-width: 66.6666666%;
-                    }
-                }
-            }
-
-            .shop-question {
-                .col {
-                    max-width: 472px;
-                }
-            }
-        }
-
-        .col-xl-4 {
-            max-width: 472px;
-
-            .col {
-                max-width: 100%;
-            }
-        }
-
-        //END set max-width on columns
     }
 
     .pointer {
@@ -156,6 +118,10 @@ body {
             width: 46.25rem; // 740px
         }
 
+        @include media-breakpoint-up(lg) {
+            width: 60rem; // 960px
+        }
+
         @include media-breakpoint-up(xl) {
             width: 63.75rem; // 1020px
         }
@@ -166,7 +132,7 @@ body {
             width: 100%;
         }
 
-        @include media-breakpoint-up(md) {
+        @include media-breakpoint-up(lg) {
             width: 58.33333333%;
         }
     }
diff --git a/src/styles/ux-variables.scss b/src/styles/ux-variables.scss
index fdec0bf1..31c55c03 100644
--- a/src/styles/ux-variables.scss
+++ b/src/styles/ux-variables.scss
@@ -194,7 +194,9 @@ $spacers: (
 //Bootstrap Grid Breakpoints - Use these breakpoints only
 $grid-breakpoints: (
     xs: 0,
+    sm: 576px,
     md: 768px,
+    lg: 992px,
     xl: 1200px,
     xxl: 1440px,
 );