Wheel offset and backspacing?
Thread Starter
Senior Member
Joined: May 2001
Posts: 525
Likes: 0
From: Ames, Iowa, USA
Car: 1989 Pontiac Firebird Formula 350
Engine: 350 TPI
Transmission: 700r4
Wheel offset and backspacing?
I am looking to get a set of corvette zr1 rims but I see 2 different types of offset and backspacing for them. I believe they both will need the adapters but will they both be the 2" adapters. The wheel sizes are:
17" x 9.5"+38mm offset (6.7 inch backspacing)
and
17" x 9.5"+56mm offset (7.4" backspacing)
The first one says they were for the 84-87 corvettes and the second one says they are for the 88-96 corvettes.
Any help with this would be appreciated because I am going to buy them with my tax returns that should be here this week so I need to know what adapters I need to buy for them. My car is an 89 Firebird Formula 350 if you need to know.
17" x 9.5"+38mm offset (6.7 inch backspacing)
and
17" x 9.5"+56mm offset (7.4" backspacing)
The first one says they were for the 84-87 corvettes and the second one says they are for the 88-96 corvettes.
Any help with this would be appreciated because I am going to buy them with my tax returns that should be here this week so I need to know what adapters I need to buy for them. My car is an 89 Firebird Formula 350 if you need to know.
Thread
Thread Starter
Forum
Replies
Last Post
rb85TA
Organized Drag Racing and Autocross
26
Sep 14, 2015 10:29 PM
punkmaster98
Interior Parts for Sale
0
Sep 8, 2015 09:45 PM
