blu98ta

iTrader: (4)

What would be a good backspacing be for a 15x4 wheel. I am looking into buying a set of prostars with 15x4in fronts, and want to know what a good backspacing would be. I know for a 15X3.5 a 1.75 is good, but what about a 4" wide wheel?

blu98ta

iTrader: (4)

will a 2.25" backspacing work on this wheel

blu98ta

iTrader: (4)

anyone??

z-ya

iTrader: (1)

Well on my 15x4 centerlines the backspace is 2 5/16 , so 2 1/4 is pretty close, just 1/16 different.

Xsta Z 28

iTrader: (2)

I always read that getting 4" wheels to fit over the LS1 brakes was a nightmare?

blu98ta

iTrader: (4)

what about 3.5" wheels??

LS69TA

iTrader: (30)

I believe the only way you can get the Centerlines is in a 15x4, not 3.5". So they will work (Centerlines don't require grinding to fit, but don't have the ideal backspacing to keep the wheel tucked inside the fender). However, the 3.5" in a Weld wheel will require 5/16" spacers and longer studs, or grinding the calipers to make them fit.

z-ya

iTrader: (1)

You can get convo pros both ways,the 15x4 tuck a little better but require grinding,the
15x3.5 fit as is.I have had both sizes.The 15x4 also does not have convolutions on the rim,no room for them.

SSPerformance

iTrader: (76)

yes it was. took a ton of grind to get the 15x4 to fit with a spacer no less