84 C4 Back Spacing numbers ...
Thread Starter
Racer
Joined: Sep 2012
Posts: 259
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From: Montclair CA
84 C4 Back Spacing numbers ...
Can I get a lil help finding BS numbers for My 84 C4
getting ready to purchase a new 18 or 19 set of after market Rims and tires
the Original turbine style 16x9.5,s are gone . this leaves me without stock rims to measure
running a set of 89 - 2 piece 9.5,s with 2" spacers .... all wrong of course
they all for sale cheap ... rims are tripple new chromies and scratch or dent free .. 275-40-17 tires are free
old and cracky would be an accurate description
... asking 350 OBO just in case someone could use them
Help is Good
Lawrence fro So call
a new oldie
getting ready to purchase a new 18 or 19 set of after market Rims and tires
the Original turbine style 16x9.5,s are gone . this leaves me without stock rims to measure
running a set of 89 - 2 piece 9.5,s with 2" spacers .... all wrong of course
they all for sale cheap ... rims are tripple new chromies and scratch or dent free .. 275-40-17 tires are free
old and cracky would be an accurate description
... asking 350 OBO just in case someone could use themHelp is Good
Lawrence fro So call
a new oldie
Team Owner
Joined: Sep 2003
Posts: 25,394
Likes: 2,741
9 1/2" offset was/is 38mm and the back-spacing for those is 6.75
That would duplicate the OE fitment but if you're doing custom wheels the offset/back-spacing could be flexed a bit for maybe a more aggressive appearance and fit to hood edge/quarter panel lip.
That would duplicate the OE fitment but if you're doing custom wheels the offset/back-spacing could be flexed a bit for maybe a more aggressive appearance and fit to hood edge/quarter panel lip.
Last edited by WVZR-1; Aug 31, 2013 at 01:16 AM.
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
Here's a chart with a lot of information on C4 suspensions and wheels:
http://corvetteactioncenter.com/tech...l#.UiF9Ohb5HIo
Basically the suspension changed drastically in 1988 and using later wheels on an earlier car requires adapters (NOT spacers).
Discount Tires told me they will not work on a car with wheel spacers. On the other hand, they have some pretty weird policies. I just had a tire repaired and they insisted that the hood had to be up, both doors open and the hatch open before they would jack up the car. They also torqued my wheels to 80 ft-lbs even though the FSM says 100 ft-lbs. When I called them on that they insisted that their computer was right. 80 ft-lbs was printed on the invoice.
http://corvetteactioncenter.com/tech...l#.UiF9Ohb5HIo
Basically the suspension changed drastically in 1988 and using later wheels on an earlier car requires adapters (NOT spacers).
Discount Tires told me they will not work on a car with wheel spacers. On the other hand, they have some pretty weird policies. I just had a tire repaired and they insisted that the hood had to be up, both doors open and the hatch open before they would jack up the car. They also torqued my wheels to 80 ft-lbs even though the FSM says 100 ft-lbs. When I called them on that they insisted that their computer was right. 80 ft-lbs was printed on the invoice.
