Ok I just got a set of 84 85 c4 vette wheels that are 16x9.5 They're like 2 inch's more inset then my stock 16x8's. What spacer's do I need for front and back. I'm not sure but I think there the same backspacing as 4th gen wheels.

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88 IROC 350 tpi, SLP cam, SLP headers 1 3/4, SLP siamised runners, Accel 58mm tb, Comp 1.6 RTR, Flowmaster 3" catback but not cat, TH350 with B & M Holeshot 3000 stall, 3.27 9 bolt posi disk rear, Vortech S-trim Supercharger, K & N and 24# SVO injectors, x911 Kenwood cd player 2 12" Solo-barics L7's,RS 5.2 pack in kick panels, a ZX460 and XS100 and more to come soon.

91 RS t-top's, tbi 305, 15.7 in 1/4, for sale

ttt

Go to skulte.com, they have a bunch of information on spacers, I bought mine there and they are great no problems so far.

Make sure when you use wheel spacers that you lengthen the wheel studs. It is a pain to do but it must be done. I didn't and I paid the price. The wheel fell off about 2 months later while making a u-turn totally destroying my fender and my ego. I since dumped the aftermarket rims and bought a set of used Iroc wheels and a new fender w/ paint job.

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1988 Camaro Sport Coupe: Orignally: 305 TBI 700r4
Now: 1974 350CI, 2bolt,.030 over, Badger Flat Head Pistons w/ valve relief, Melling high performance street cam, GM Cast Vortec Heads, Edelbrock RPM Air Gap Intake, Edelbrock 600cfm w/ electric choke, GM HEI w/ vacuum advance, Weiand Low Profile Air Cleaner, Mallory 5 port Fuel Pressure Regulator, Mr. Gasket Throttle Cable Bracket, Corvette Shift Servo, 16" IROC Wheels, Every thing else is STOCK