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Differential Carrier Alignment


NYNick

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I've had my rear subframe out and re-did the whole thing. I put everything back on the subframe, including the diff and it's brandy new carrier and jacked the whole thing it into place. I've got the rear carrier bushings by the doors already attached, but not their arm supports, quite yet. 

 

For the life of me I couldn't align the Differential Carrier with the support bracket on the bottom of the body. I loosened the bolts, jiggled and wiggled, tried loosening the front rear carrier bushings under the door area...argh. Finally I removed the Diff Carrier from the Diff and loosely attached it to the body support bracket. The diff is still mis-aligned. Not by much, maybe the bolts from the carrier are 1/4-1/2 inch off from aligning with the slots on the Diff but that's enough.

 

I've jacked under it, on the sides, one jack, two jacks, argh. The Diff has been torqued and aligned on the subframe, as well as everything else. How do i reattach this thing?

 

Thx

 

Nick

20180320_154522.jpg

1974 2002 Tii-SOLD

1978 911SC Coupe

1988 Landcruiser

2020 M2 CS

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Negative. I was careful to put the Diff back on the subframe in the same spot as it was since there are slots in the subframe to adjust the Diff forwards or backwards, I assume to match and attach the driveshaft later. Those bolts are also torqued to 52 Ft lbs so I was trying not to have to do that for obvious reasons. But if you think that's the only way I can give it a try tomorrow. I really didn't want to move that Diff though. Maybe it's catty cornered on the sub, but I was really careful.

1974 2002 Tii-SOLD

1978 911SC Coupe

1988 Landcruiser

2020 M2 CS

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1 hour ago, TobyB said:

Sure you have the rear subframe bushings on right- side- up?

 

If so, loosen the diff, wiggle, repeat.

 

t

 

Subframe bushings are correct side up (with Prothane insert mod. Yes, they're flush)

 

24 minutes ago, Buckeye said:

Please follow following procedure. should not have any issue down the road.

 

5ab18ea63fa34_Capture4.thumb.PNG.b928f965f84b2b80e196c1f2479e49f5.PNG and rubber bushings are not upside down. correct?

5ab18f98d24e5_rubberbushing.thumb.PNG.4aeef3ce42484371c2da5b94f47d4588.PNG

Will go through the steps tomorrow.

 

THX

 

Nick

1974 2002 Tii-SOLD

1978 911SC Coupe

1988 Landcruiser

2020 M2 CS

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12 hours ago, jimk said:

Transverse bracket turned the correct way?  I believe it is not symetrical.

You can barely see the bottom of the Transverse Bracket in the pic above which shows the right angle lip turned in towards the Diff cover. That's the proper orientation.

 

I'll be loosening the 4 Diff bolts today and rocking and rolling until I get it to fit. Argh.

1974 2002 Tii-SOLD

1978 911SC Coupe

1988 Landcruiser

2020 M2 CS

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You guys are awesome. Toby and Buckeye win! It literally took me 10 minutes to loosen the 4 Diff bolts and hook up the carrier. After that it was just tightening and torquing. 

 

Onto re-assembling the rear brakes. THANKS!!!

 

Nick

 

(Buck, where did you get that diagram and step process?)

Edited by NYNick

1974 2002 Tii-SOLD

1978 911SC Coupe

1988 Landcruiser

2020 M2 CS

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9 hours ago, NYNick said:

You guys are awesome. Toby and Buckeye win! It literally took me 10 minutes to loosen the 4 Diff bolts and hook up the carrier. After that it was just tightening and torquing. 

 

Onto re-assembling the rear brakes. THANKS!!!

 

Nick

 

(Buck, where did you get that diagram and step process?)

Buckeye has the official BMW "Blue book" service manual.

Jim Gerock

 

Riviera 69 2002 built 5/30/69 "Oscar"

Royal Red 69 VW Squareback built 8/13/68 “Patty”

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