ZR-1 Net Registry Forums - View Single Post - Paging the pros: ZR-1 Rear end gear changes

Jagdpanzer · 01-24-2008

If you want to stay with an OEM ring and pinion gear set from Dana your best bet is to go with the Viper gears from an online Mopar parts house like
http://www.mopardiscountparts.com (till end of Feb. you can use coupon code 100 for an extra 5% off)
or try your local Dodge dealer.
P5007043 is the Mopar part number for the 4.10 ratio ring and pinion set.
List price is $319 but with typical discount you should be able get them for around $250 to $265 which is not that much more than a set of aftermarket gears from someone like Yukon.
You should also replace all the bearings and seals while your at it.
Ratech 3012K Deluxe Installation Kit for the 84-96 Corvette Dana 44 Axle comes complete and also includes the side yoke bearings and seals. It sells for $112 plus shipping which is a pretty good deal.
http://ratech.stores.yahoo.net/coax84d44.html
Be sure you tell them that the pinion height is set by shimming the rear pinion bearing on the pinion shaft and not by shimming the bearing cup in the housing like is done on the Viper Dana 44. Otherwise they will send you the larger diameter rear pinion bearing cup shims.
You should find a good shop to do the work if you are not experienced and don't have the necessary special tools. The Corvette Dana 44 is nothing special as far as the expertise needed to properly set one up. Any competent automotive rear axle shop should be able to handle it.

01-24-2008	#4
Jagdpanzer Join Date: Apr 2007 Location: Northern VA Posts: 2,651	Re: Paging the pros: ZR-1 Rear end gear changes If you want to stay with an OEM ring and pinion gear set from Dana your best bet is to go with the Viper gears from an online Mopar parts house like http://www.mopardiscountparts.com (till end of Feb. you can use coupon code 100 for an extra 5% off) or try your local Dodge dealer. P5007043 is the Mopar part number for the 4.10 ratio ring and pinion set. List price is $319 but with typical discount you should be able get them for around $250 to $265 which is not that much more than a set of aftermarket gears from someone like Yukon. You should also replace all the bearings and seals while your at it. Ratech 3012K Deluxe Installation Kit for the 84-96 Corvette Dana 44 Axle comes complete and also includes the side yoke bearings and seals. It sells for $112 plus shipping which is a pretty good deal. http://ratech.stores.yahoo.net/coax84d44.html Be sure you tell them that the pinion height is set by shimming the rear pinion bearing on the pinion shaft and not by shimming the bearing cup in the housing like is done on the Viper Dana 44. Otherwise they will send you the larger diameter rear pinion bearing cup shims. You should find a good shop to do the work if you are not experienced and don't have the necessary special tools. The Corvette Dana 44 is nothing special as far as the expertise needed to properly set one up. Any competent automotive rear axle shop should be able to handle it. Last edited by Jagdpanzer; 01-19-2010 at 10:22 PM.