9 bolt question???
#1
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Car: a 91 rs convertible and a Iroc z convertible
Engine: 305 tbi, and 350 tpi
Transmission: 700r4
9 bolt question???
ok i got a question. i found a 9 bolt on a camaro in the junkyard and brought it home. however this mechanic by the house said i would need all kinds of modifications, since he said that 9 bolts are only for fords! is this so? because i have seen many camaros/firebirds with 9 bolts! was this an option or are they really suppose to be for fords and people just make them work on third gens?
#2
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Car: 89 IROCZ
Engine: L98 4150 carb
Transmission: Transgo 700-r4
Axle/Gears: 10 bolt/3.23
no ur mechanic is talking about the ford 9inch rear. the 9bolt u have will bolt right in.
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My 89 IROC came stock with a 9 bolt posi-rear. I believe they were made in Australia for GM for about 3 years in the late 80's. The 9 bolts were made stronger than the 10 bolts, but because they were made for only a few years it's difficult to find aftermarket or replacement parts.
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#9
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Car: 87 IROC
Engine: 5.7 TPI
Transmission: 700-R4
Axle/Gears: BW 7.75" 3.27
Just keep in mind that the 9-bolt is difficult to find parts for. Don't get me wrong, you can get them, but they are definately tougher to locate. There are also special procedures that need to be followed when working on them that seperate them from the typical 10-bolt.
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What needs to be converted? I believe you simply remove the 10-bolt, and install the 9-bolt. You might change the end-links, but that's about it, or so I think.
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What needs to be converted? I believe you simply remove the 10-bolt, and install the 9-bolt. You might change the end-links, but that's about it, or so I think.
Last edited by 87IROCZ350TPI; 06-15-2006 at 06:15 PM. Reason: Automerged Doublepost
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Car: '72 Chevy Nova
Engine: Solid roller 355
Transmission: TH350
Axle/Gears: 8.5" 10-bolt 3.73 Posi
9 bolts aren't THAT much stronger. a 10 bolt rear end has a 7.5" ring gear, the 9 bolt is a 7.75" iirc, along with one other minor thing.
imo either put some gears in the 10 bolt or save some cash for something tough (ford 9 inch or moser 12 bolt).
imo either put some gears in the 10 bolt or save some cash for something tough (ford 9 inch or moser 12 bolt).
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Car: 87 IROC
Engine: 5.7 TPI
Transmission: 700-R4
Axle/Gears: BW 7.75" 3.27
Are you sure that a 9-bolt isn't much stronger? I don't know much about these rears, but I've heard a lot of talk that they have a large strength advantage over the 10-bolt. Don't take this as a challenge, I'm just inquiring. I have a 9-bolt and being that parts are a bitch too find, I may consider swapping out to a 10. I just haven't because of what I've heard regarding their increased strength.
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Car: projects.......
9 bolts aren't THAT much stronger. a 10 bolt rear end has a 7.5" ring gear, the 9 bolt is a 7.75" iirc, along with one other minor thing
For a moderate performance street car, a good 9-bolt will hold up a long time. It takes a girdle and upgraded axles to make a 7.5 10-bolt take it very long.
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Car: 1948 CHEVY PANEL TRUCK
Engine: 305tpi
Transmission: 700r4
Axle/Gears: 3.27
unless you are running big #s horsepower what differents does it make from a 9 or 10 bolt they are both for the street not made to race
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Car: projects.......
unless you are running big #s horsepower what differents does it make from a 9 or 10 bolt they are both for the street not made to race
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Car: 1987 IROC-Z Camaro
Engine: 5.7 350 TPI - SLP Runners, AFPR, MSD Goodies
Transmission: 700R4 - Shift Kit, Corvette Servo
Axle/Gears: BW 9 bolt, 3.27s
9 Bolts can take alot more abuse than a 10 bolt. You need to get rid of your mechanic if he doesn't know the difference between a 9bolt and 9inch.
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