Zip Corvette sales and customer service representatives are here to serve you during the following hours:
Mon-Fri. 8:00am-5:00pm
Sat-Sun: Closed
(Eastern Standard Time)
Zip’s showroom will be unavailable for walk-in shopping or order pickup. Local customers are encouraged to call us at 1.800.962.9632 to place an order with your favorite Zip salesperson. All customers can continue to shop securely online 24/7 at zip-corvette.com. Orders are shipping as usual. All in-stock parts ship same-day when your order is placed by 3pm ET Monday-Friday.
Other questions? Contact us here 24 hours a day 7 days a week.
Factory D44 equipped C4 Corvettes used shims to set the pinion preload until the 1994 model year - that is when Dana changed to a crush sleeve for the pinion preload. If you're changing the gears in your 1985-1996 Dana 44 differential, a new crush sleeve is required for a rebuild as all new ring & pinions are designed to use the crush sleeve. Shims will only be used on factory original gear sets.