9-bolt inter-changeability?
09-28-2007, 01:30 AM
#1
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Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
9-bolt inter-changeability?
Between a 87 and a 89...
I know the calipers & rotors are different, an I think the backing plates flanges are different, but what about...
axles?
ring gear?
pinion gear?
housing? (is are the backing plates & flanges different?)
Basically...Is there anything from the 87 9-bolt rear, I can salvage, for a 89 rear?
I know the calipers & rotors are different, an I think the backing plates flanges are different, but what about...
axles?
ring gear?
pinion gear?
housing? (is are the backing plates & flanges different?)
Basically...Is there anything from the 87 9-bolt rear, I can salvage, for a 89 rear?
Last edited by Stephen; 09-28-2007 at 01:34 AM.
09-29-2007, 01:18 AM
#2
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Re: 9-bolt inter-changeability?
I have a 90 and it's got the 4-bolt backing plate. I would suspect that all of those parts are interchangeable. I would salvage the whole kit & kaboodle if I had the opportunity. sort it out later. opportunity only knocks once.
09-29-2007, 01:19 AM
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Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: 9-bolt inter-changeability?
Everything is interchangeable, there were no changes in the 9 bolt throughought the production run.
09-30-2007, 09:37 PM
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Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: 9-bolt inter-changeability?
Cool. I guess I'll just ditch the calipers & rotors, and keep everything else, for any future needs.
10-03-2007, 02:31 PM
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Car: 85 camaro z28
Engine: 305 TPI
Transmission: T56 6 speed
Axle/Gears: 3.27 borg warner 9 bolt
Re: 9-bolt inter-changeability?
what about inter changeability between the 9 bolt and 10 bolt. i heard that parts are hard to find for the 9bolts and was wondering what exactly can break that isn't interchangeable.
10-03-2007, 03:22 PM
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Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: 9-bolt inter-changeability?
Nothing is interchangeable between the 9 bolt and 10 bolt.
10-03-2007, 04:07 PM
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Car: 85 camaro z28
Engine: 305 TPI
Transmission: T56 6 speed
Axle/Gears: 3.27 borg warner 9 bolt
Re: 9-bolt inter-changeability?
is it just the guts of the rear end that isn't interchangeable or is it stuff like wheel bearings and brakes too?
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10-03-2007, 06:03 PM
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Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: 9-bolt inter-changeability?
Rotors and calipers are the same, but they're not really part of the rear end.
10-03-2007, 07:22 PM
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Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: 9-bolt inter-changeability?
Yes, all 10 bolts with disc brakes got PBR calipers starting in 1989. There are no differences in the brakes between 9 bolts and 10 bolts of the same year (except for the backing plates).
10-03-2007, 08:02 PM
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Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: 9-bolt inter-changeability?
That's new to me
Here's one right here.
The pic sucks, and doesn't show the cover; but you have my word of honor, it's a 10-bolt. Came from about a 91 or 92 GTA. Yes I'm quite sure it's a 10-bolt: 10-bolt gears (just the stock ones for the car, 3.73) fit it, a 10-bolt Eaton posi fits it, and a 10-bolt T/A cover is on it. Not only that, it has 10 bolts.
10-03-2007, 08:11 PM
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Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: 9-bolt inter-changeability?
Oh no...Not Sofa...
GTAs didn't come with 10 bolts to begin with...
GTAs didn't come with 10 bolts to begin with...
Last edited by Stephen; 10-03-2007 at 08:24 PM.
10-03-2007, 08:28 PM
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Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: 9-bolt inter-changeability?
We all get to learn something new every now & then....
GTAs didn't come with 10 bolts to begin with...
Hey looky there!!! 2 things in one day. Circle this one in red on your calendar.
10-03-2007, 08:33 PM
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Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: 9-bolt inter-changeability?
Don't bother Sofaf***ingretarded...
My belly button lint holds more weight than your "ideas"....You live to stir up ****, and enjoy it, huh?
My belly button lint holds more weight than your "ideas"....You live to stir up ****, and enjoy it, huh?
10-04-2007, 12:01 AM
#18
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Re: 9-bolt inter-changeability?
Last year for the 9-bolt was 89.
10-04-2007, 06:23 AM
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Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: 9-bolt inter-changeability?
Right; a VERY VERY few 90s, mostly at the VERY beginning of the 1990 production run in 1989, got leftover 9-bolts from 1989. Yours must be one of those few.
Not sure what Stephen is all about, there? All I'm doing is showing pictures of things that EXIST and quoting well- and widely-known production facts; is there a problem with that? Sorry if facts hurt.
Not sure what Stephen is all about, there? All I'm doing is showing pictures of things that EXIST and quoting well- and widely-known production facts; is there a problem with that? Sorry if facts hurt.
10-06-2007, 06:29 PM
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Car: 1988 GTA
Engine: 383 STROKER
Transmission: TH350
Axle/Gears: 373
Re: 9-bolt inter-changeability?
I
----------
I AM NEW TO THE WEB SITE, BUT NOT 3RD GEN CAMAROS AND TRANS AMS, BUT I JUST GOT A 88 GTA AND THE REAR WAS LEAKING AND IT THREW ME WAY OFF WITH THAT REAR ITS A 9 BOLT BW, THANKS FOR THE INFO
----------
I AM NEW TO THE WEB SITE, BUT NOT 3RD GEN CAMAROS AND TRANS AMS, BUT I JUST GOT A 88 GTA AND THE REAR WAS LEAKING AND IT THREW ME WAY OFF WITH THAT REAR ITS A 9 BOLT BW, THANKS FOR THE INFO
Last edited by RF88GTA; 10-06-2007 at 06:31 PM. Reason: Automerged Doublepost
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