IROC wheel backspacings?
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Junior Member
Joined: Feb 2001
Posts: 2
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From: Atlanta, GA
IROC wheel backspacings?
Hi, can someone tell me the backspacings for '85-90 IROC (16x8) wheels? I've seen them listed as having 0 and 16mm offsets, which I guess means 4" and 4.625". Others have said it's actually 4.5" and 5.125". Also, which one has the deeper backspacing, front or rear? I've heard it's the rear, which seems counter-intuitive. thanks,
Chris
Chris
Joined: Jul 1999
Posts: 10,950
Likes: 26
From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Check the rim & wheel tech article at www.skulte.com
------------------
West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
------------------
West Coast GM Shootout 2001!
1991 Camaro Z28
5.7L 5-Speed (originally 305)
13.25 @ 107.18 MPH
Southern California
Member: SoCal 3rd Gen F-Bodies
Webmaster: SoCal F-Bodies
-=ICON Motorsports=-
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