ZR1 11Wheels install ??
Thread Starter
Intermediate
Joined: Nov 2020
Posts: 34
Likes: 2
From: Lakeville, Massachusetts
ZR1 11Wheels install ??
How can I install 90 ZR1 17'X11' 36mm rear wheels on a 90 C4 with 56mm rear?
Is it possible to modify the rear from 56mm to 36mm by using 87 36mm outer knuckles & outer shafts?
Is it possible to modify the rear from 56mm to 36mm by using 87 36mm outer knuckles & outer shafts?
Le Mans Master
Joined: Aug 2015
Posts: 6,091
Likes: 1,972
From: St. Charles MO
If you really must use those particular wheels, then you should look up an old set of mods called "big doggie (doggy?)" mod. It's not as simple as the parts replacement you're talking about. It requires some grinding/machining. To do a straight bolt-on, you'd have to replace the entire rear subframe/diff/suspension with one from a 84-87, which is a downgrade in performance. And all of this is so you can fit some wheels, for which very few tires are made anymore.
My strong suggestion is that you abandon the ZR1 wheels and get 11" wheels with 50mm offset, which will fit your car with no mods and 315 tires.
My strong suggestion is that you abandon the ZR1 wheels and get 11" wheels with 50mm offset, which will fit your car with no mods and 315 tires.
Thread Starter
Intermediate
Joined: Nov 2020
Posts: 34
Likes: 2
From: Lakeville, Massachusetts
If you really must use those particular wheels, then you should look up an old set of mods called "big doggie (doggy?)" mod. It's not as simple as the parts replacement you're talking about. It requires some grinding/machining. To do a straight bolt-on, you'd have to replace the entire rear subframe/diff/suspension with one from a 84-87, which is a downgrade in performance. And all of this is so you can fit some wheels, for which very few tires are made anymore.
My strong suggestion is that you abandon the ZR1 wheels and get 11" wheels with 50mm offset, which will fit your car with no mods and 315 tires.
My strong suggestion is that you abandon the ZR1 wheels and get 11" wheels with 50mm offset, which will fit your car with no mods and 315 tires.
tire.. I have gathered a really nice set of 90 ZR1 wheels that match my original ones.. My goal it to keep it stock looking!! Also I have purchased a nice set or rear 88-96 rear hubs assemblies & the required 84-87 shorter axle/spindles shafts.. I did see the some machining is needed but I have access to end mills & lathes.. So this will it will be a fun project!! I will also keep my original knuckle assemblies in storage if I ever decide to revert back to stock form..
https://www.corvetteforum.com/forums...post1601494980
