IROC steering box compatibility
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Joined: Oct 2006
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Car: 1987 IROC-Z Z28 Convertible
Engine: LB9
Transmission: 700R4
Axle/Gears: 3.23
IROC steering box compatibility
I am looking locally for a steering box for my 1987 IROC vert. Does anyone know if the boxes are the same for all F?, all IROCs, et al? This will help narrow down the find.
Joined: Nov 2005
Posts: 2,346
Likes: 1
From: Naples, FL
Car: 91 RS Camaro, 75 L82 Corvette
Engine: LO3, 383 Stroker
Transmission: 700R4, TH400
Axle/Gears: 4th gen 3.23 posi/LS1 discs, stock
You want to find a box that has "WS" or "XH" stamped in ink on the front of the box, they are the quick ratio boxes. IIRC, the XH came on cars with 16in wheels and the WS boxes came on cars with 15in wheels.
Joined: Aug 1999
Posts: 19,282
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
The following link provide a ton of info:
https://www.thirdgen.org/forums/susp...box+IROC+ratio
JamesC
https://www.thirdgen.org/forums/susp...box+IROC+ratio
JamesC
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