Transmissions and Drivetrain Need help with your trans? Problems with your axle?

12 bolt users - BRAKES!?

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Old Jun 14, 2004 | 10:21 PM
  #1  
SnkSknrZ28's Avatar
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Car: 1988 Camaro IROC-Z
12 bolt users - BRAKES!?

Ok i need to get my rear end ordered pronto...
I called up Moser, got everythign situated and then the brake question arrose, he told me he wasn't sure if the stock drums on my car will work, i have to measure the 4 bolts on the axles (which i didn't do yet cuz my cars getting a roll bar installed) SO... Anyone who has a 12 bolt rear, moser, strange, whatever the manufacturer what did u do for rear brakes! Convert to aftermarket disks? Stock style disks??

Thanks in advance! Mike
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Old Jun 15, 2004 | 07:05 PM
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Car: 1991 Z28
Engine: 305 TPI under 14 psi
Transmission: aftermarket T56
Axle/Gears: Moser 12 bolt 3.08 gears
I ordered a baer rear disk brake converison kit, and then had the backing plates machined for the moser flanges and press on bearing. Your stock drum brake setup has 3 bolts that hold the backing plate to the rearend flange. It won't work period. If you ordered the c-clip axle setup then you could use almost any chevy 4 bolt backing plate setup without machine work. If it is the ford press on bearing setup then you'll have to do something similar to what I did.
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Old Jun 16, 2004 | 01:10 AM
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Apeiron's Avatar
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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
The flange on the 12 bolt should be the same as the disc brake flange on the 10 bolt.
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Old Jun 16, 2004 | 02:58 PM
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YenkoZ28's Avatar
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Car: 1991 Z28
Engine: 305 TPI under 14 psi
Transmission: aftermarket T56
Axle/Gears: Moser 12 bolt 3.08 gears
It isn't though. Moser takes the ford 9" housing ends and welds them on rotated 90 degrees, so you have to drill the backing plate to match the moser rear.
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Old Jul 14, 2004 | 06:50 PM
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From: p'cola FL
Car: 88 iroc-z/28
Engine: 408 lsx
Transmission: 5800 stall
Axle/Gears: 4.71
why does moser turn the ends 90 degrees? i need to call them. just got a big brake kit and my caliper is at 6 oclock.... that aint gonna fly.

the brake folks are telling me 150.00 bucks for a custom bracket.... on moser engineering.
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Old Jul 15, 2004 | 11:47 PM
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YenkoZ28's Avatar
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Posts: 243
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Car: 1991 Z28
Engine: 305 TPI under 14 psi
Transmission: aftermarket T56
Axle/Gears: Moser 12 bolt 3.08 gears
They rotate the ford ends 90 degrees, so you can have a machine shop drill the backing plate with 4 new holes. If it wasn't rotated then a couple of the holes would be placed outside of the backing plate if I remember right. It cost me about $100 to have a machine shop drill the holes and press on the bearings and cut a groove in the backing plate, so it acts as the bearing retainer. The caliper will end up in the stock location. I agree about the bs thing, Moser could have easily used a special GM housing end with the 3.150 bearing.
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Old Jul 16, 2004 | 07:01 PM
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From: p'cola FL
Car: 88 iroc-z/28
Engine: 408 lsx
Transmission: 5800 stall
Axle/Gears: 4.71
yea, my boss is a machinist, so all my counterboring and drilling was no charge. i guess it came back to me, cause i gotta spend the extra money, or my nice aerospace component brake kit wont fit. :lala:

anyone wanna make me a bracket for a cheesburger?
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