9 Bolts rear Rotor change to 1LE rotor?
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From: Ontario, Canada
Car: 1988 Camaro Iroc / 1989 Firebird TA
Engine: Camaro 350 cid / Firebird 305 cid
Transmission: Soon T56 D&D Viper (WC T5) / WC T5
Axle/Gears: 9 bolts; 3.45>3.89 / 10 bolts; 3.08
9 Bolts rear Rotor change to 1LE rotor?
I have a rear 9 bolts 3.45 gears with 10.5" diameter rotors and iron 1 piston calipers.
I know that the rear 1989 1LE rotors are bigger than the 10.5" rotors and I am not sure how many pistons are on the rear 1LE?
I am wondering could I use the 1LE bigger rotors to put on my 9 bolts axle with the stock iron calipers or will I have to use the 1LE calipers and are there anything that I am missing that might not fit?
Thanks.
I know that the rear 1989 1LE rotors are bigger than the 10.5" rotors and I am not sure how many pistons are on the rear 1LE?
I am wondering could I use the 1LE bigger rotors to put on my 9 bolts axle with the stock iron calipers or will I have to use the 1LE calipers and are there anything that I am missing that might not fit?
Thanks.
Last edited by scottwrightF1; Sep 15, 2010 at 10:33 AM.
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: 9 Bolts rear Rotor change to 1LE rotor?
You need the entire 89+ setup from the backing plates out.
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
Re: 9 Bolts rear Rotor change to 1LE rotor?
I know that the rear 1989 1LE rotors are bigger then 10.5" rotors and not sure how many pistons are on the rear 1LE.
I am woundering could I use the 1LE bigger rotors to put on my 9 bolts axle with the stock iron calipers or will I have to use the 1LE calipers and are there anything that I am missing that might not fit?
I am woundering could I use the 1LE bigger rotors to put on my 9 bolts axle with the stock iron calipers or will I have to use the 1LE calipers and are there anything that I am missing that might not fit?
You can't use 1LE rotors with Delco-Moraine calipers. Nothing will fit. Check the following link for all you need to know about the conversion:
https://www.thirdgen.org/forums/faq-...iscs-89-a.html
JamesC
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