I am looking at new wheels for my car that dont need spacers and I need to know what size backspacing I will need to run a 17x10" in the rear with a 4th gen rearend. The wheels I am looking at only come in 8 and 10" widths so I am stuck with the 8" width up front which sucks because I have brand new Nitto 275/40/17 tires and I doubt they will lok good on an 8" wheel. So,again, which BS should I go with for the 4th gen rear with a 10" wheel? The front BS is 5.5" right"

 

From what i have seen the front BS is 4.5 with 18x8 im trying to find the same infor for the rear tho 4th gen rear 18x10 rim and i need blackspacing so i dont need spaces and the wheel sitin the fender so i can slower it a little... thanks

 

it be the same as 4th gen fbody and vette wheels cuz i know they bolt right in with the 4th gen rear on our cars.

they spec out to be in the 6.7-7.9 inch range of backspacing for the 9.5-10.5inch wheels

depends on wheel design tho..and what u want to get like deep dish or w/e

 

Since 5.5" backspace works best for 10" rims on a third gen diff, add 2" on each side to compensate for the wider fourth gen diff. 7.5" backspace for 10" rims will keep the wheels in the same position.

 

yes and no...The width difference is not a full 2".
I'm trying to remember....I believe my 11 wides are an 8" bs.