9bolt woes
#1
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Location: Carson City Nevada
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Car: 86 coupe
Engine: 383
Transmission: 700r4
Axle/Gears: 9 bolt 3.27 posi
9bolt woes
Well dammit!
I finally got the 9bolt together, modeled the caliper position after the Delco Moraine calipers on the other one I have. Apparently the PBR calipers are both at the rear of the diff, where the older ones have the passenger side caliper to the front. Looks like I get to pull the axle and flip the mounting bracket because the bracket holes are not symmetrical.
Also that means replacing the axle bearing and seal because they are not reusable!
Live and learn.
Hope someone finds this useful.
Murphys law strikes again.
I finally got the 9bolt together, modeled the caliper position after the Delco Moraine calipers on the other one I have. Apparently the PBR calipers are both at the rear of the diff, where the older ones have the passenger side caliper to the front. Looks like I get to pull the axle and flip the mounting bracket because the bracket holes are not symmetrical.
Also that means replacing the axle bearing and seal because they are not reusable!
Live and learn.
Hope someone finds this useful.
Murphys law strikes again.
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Car: Base 91 'bird
Engine: 3.1 v6
Transmission: 4L60
Axle/Gears: 9-bolt 3.27 & PBR
Re: 9bolt woes
If all you're doing is flipping the brake mounting bracket around you don't need to remove the axle flange so you don't need to remove the bearing. Unless I'm not clear on exactly what you need to do. The hole in the brake bracket is bigger than the bearing.
#5
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Car: 86 coupe
Engine: 383
Transmission: 700r4
Axle/Gears: 9 bolt 3.27 posi
Re: 9bolt woes
Base 91, these brackets are from Ed Miller for the PBR conversion. The hole in them is smaller than the axle flange. I have to have the other side of the bracket facing the diff., can't just spin the bracket because the mounting holes are not symmetrical.
Last edited by SLEEPER 86; 05-12-2014 at 03:03 PM.
#7
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Car: 1988 gta
Engine: 383
Transmission: 700r4
Axle/Gears: 9 bolt 3:23
Re: 9bolt woes
My bearings, seals are on their 3rd installation , no leaks. I clean the outer edge of the seal and apply a very small bead of RTV on it.
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#8
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Car: 86 coupe
Engine: 383
Transmission: 700r4
Axle/Gears: 9 bolt 3.27 posi
Re: 9bolt woes
The axle came out really easily. Makes me wonder if I had the seal all the way seated? How did you seat your seals? I used an old input shaft against the piece that bolts to the housing, through the holes in the axle flange and rotated the axle to work it all the way around hammering against the input shaft. Did I do it right?
#9
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Car: 1988 gta
Engine: 383
Transmission: 700r4
Axle/Gears: 9 bolt 3:23
Re: 9bolt woes
The 4 bolts that hold the axle flange on are holding the seal in place, no hammering. Thin bead of sealer on the outer edge of seal, works for me.
#10
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Car: 86 coupe
Engine: 383
Transmission: 700r4
Axle/Gears: 9 bolt 3.27 posi
Re: 9bolt woes
When I tightened the bolts down the first time, the cover started to bend. I'm wondering if I didn't have the bearing race seated all the way or something.
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