Looking to rebuild my 9 bolt
#1
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Car: 1988 Gta trans am project 1-1/2
Engine: 86 4 bolt main cammed sbc 355 hsr
Transmission: 89 wc bw t5
Axle/Gears: Bw 9 bolt (3.27) pbr 11in
Looking to rebuild my 9 bolt
Ok everyone my 89 pbr rear end 9 bolt 3.27 ring gear has developed a slight hum so i want to rebuild the whole rear end new ring and pinion, axles, spider gears, axle seals bearings pinion gear seal etc etc i have the part number for the axles, and ring and pinion but i cant find the rest can someone help me out this diff has 155+ miles and the p/s axle seal is leaking anyway
#4
Re: Looking to rebuild my 9 bolt
The Yukon installation kit is a very good one for the 9 bolt. You will also want to inspect the cones and see if they have bottomed out, or if they are close. This would be a good time to have that repaired if needed.
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Car: 1988 Gta trans am project 1-1/2
Engine: 86 4 bolt main cammed sbc 355 hsr
Transmission: 89 wc bw t5
Axle/Gears: Bw 9 bolt (3.27) pbr 11in
Re: Looking to rebuild my 9 bolt
Ok what i meant to say was i want t install 3.70's since mine has the stock 3.27 in it what would i need to complete this install
#6
Re: Looking to rebuild my 9 bolt
The Yukon installation kit, axle bearings and seals and a set of 3.70 gears. As far as I know all of the 3.70 gears make some noise. Randy's Ring & Pinion has all of the parts you need. I think Summit also sells the Yukon parts.
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Car: 89 Iroc Camaro
Engine: 5.7 l98
Transmission: 700R4
Axle/Gears: 3.70
Re: Looking to rebuild my 9 bolt
http://www.drivetrainspecialists.com...t-borg-warner/
This is the exact same thing I did to my Iroc. The pinion seal was leaking and I could not figure out why. come to find out, some one had installed a 10 bolt ring and pinion and did a crappy job shimming it up. I looked all over the internet trying to find the stock replacement. 9bolt.com was one option but had very delayed response which was very frustrating. 9bolt.com is a little cheaper but the stock replacement parts they have are used. i had the extra money at the time so i went for the 3.70 R&P and the install kit from Drivetrainspecialist. hope this helps
This is the exact same thing I did to my Iroc. The pinion seal was leaking and I could not figure out why. come to find out, some one had installed a 10 bolt ring and pinion and did a crappy job shimming it up. I looked all over the internet trying to find the stock replacement. 9bolt.com was one option but had very delayed response which was very frustrating. 9bolt.com is a little cheaper but the stock replacement parts they have are used. i had the extra money at the time so i went for the 3.70 R&P and the install kit from Drivetrainspecialist. hope this helps
Last edited by JD Z28; 01-25-2016 at 06:37 PM.
#9
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Re: Looking to rebuild my 9 bolt
How do you like your car with those 3.70 gears? I've always been told that 3.7x gears would keep a TPI motor out of the powerband. Those 3.70 gears are the only "new" gears that I've been able to find though.
http://www.drivetrainspecialists.com...t-borg-warner/
This is the exact same thing I did to my Iroc. The pinion seal was leaking and I could not figure out why. come to find out, some one had installed a 10 bolt ring and pinion and did a crappy job shimming it up. I looked all over the internet trying to find the stock replacement. 9bolt.com was one option but had very delayed response which was very frustrating. 9bolt.com is a little cheaper but the stock replacement parts they have are used. i had the extra money at the time so i went for the 3.70 R&P and the install kit from Drivetrainspecialist. hope this helps
This is the exact same thing I did to my Iroc. The pinion seal was leaking and I could not figure out why. come to find out, some one had installed a 10 bolt ring and pinion and did a crappy job shimming it up. I looked all over the internet trying to find the stock replacement. 9bolt.com was one option but had very delayed response which was very frustrating. 9bolt.com is a little cheaper but the stock replacement parts they have are used. i had the extra money at the time so i went for the 3.70 R&P and the install kit from Drivetrainspecialist. hope this helps
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Car: 89 Iroc Camaro
Engine: 5.7 l98
Transmission: 700R4
Axle/Gears: 3.70
Re: Looking to rebuild my 9 bolt
Well, my car also has a mild cam and short tube headers. So it's definitely got some more pep, mostly on the low end but it still goes through the power band pretty well.
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Car: 89 Iroc Camaro
Engine: 5.7 l98
Transmission: 700R4
Axle/Gears: 3.70
Re: Looking to rebuild my 9 bolt
I think the 3.27 gear uses a 3 series carrier which is also what the 3.70 gears uses.
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