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  #1  
Old 05-04-2020, 11:53 AM
urquattrogus urquattrogus is offline
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Default Dual Ear Diff Mount Mod & Changing the Guibo/Drive Shaft Coupler

I've been cogitating on two extra jobs, one big, one small.

My boot floor and diff mount are in generally good shape, although the diff mount has a 2mm crack.

Has anyone done the Randy forbed style mod where you put a new diff casing on the back of the diff and use two diff mounting ears?

The ears can be bought from bmw and it's an E36 M3 diff casing

Another much smaller thing, was going to replace the prop shaft shock donut/guibo, not sure if completely necessary but now at 90k miles thought it might be a good idea, whar results have people had with doing this? That and grease the U/J's. All a bit hard to get to without removing the exhaust centre section.

Any advice or tips are appreciated.

I do have a powerflex diff mount which I could fit in situ without removing the diff, think the diff mount is pretty worn..... Subframe bushes supposedly replaced a few years ago.
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Old 05-04-2020, 12:55 PM
Fat Tony Fat Tony is offline
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Quite a lot of info in this thread, particularly from this page onwards:
https://www.z3mcoupe.com/forum/showt...t=2332&page=41

I believe the dual ear mount requires fairly extensive mods to the OE exhaust or the fitting of aftermarket rear exhaust section. There's a thread detailing the work undertaken by Redish somewhere but I'm still searching for the that
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Last edited by Fat Tony; 05-04-2020 at 12:57 PM.
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Old 05-04-2020, 12:57 PM
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Quote:
Originally Posted by Fat Tony View Post
Quite a lot of info in this thread, particularly from this page onwards:
https://www.z3mcoupe.com/forum/showt...t=2332&page=41

I believe the dual ear mount requires fairly extensive mods to the OE exhaust or the fitting of aftermarket rear exhaust section. There's a thread detailing the work undertaken by Reddish somewhere but I'm still searching for the that


https://www.z3mcoupe.com/forum/showt...ghlight=redish
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Old 05-04-2020, 12:59 PM
Fat Tony Fat Tony is offline
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This one:
https://www.z3mcoupe.com/forum/showthread.php?t=19312
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Old 05-04-2020, 01:00 PM
Fat Tony Fat Tony is offline
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Damn, beat me to it Dave

Are you hardwired to the forum server?
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Old 05-04-2020, 01:01 PM
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Damn, beat me to it Dave

Are you hardwired to the forum server?
0011000111yes0000011111000000
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Old 05-04-2020, 01:02 PM
Fat Tony Fat Tony is offline
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Old 05-04-2020, 01:08 PM
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I think a few members have fitted the full blown RF kit but only Jim and Reddish have documented it, I am about to have a new Giubo fitted but am getting it down by my Inde with a few other parts at the same time. My diff mount also had a couple of mm split but I just had it rewelded and a couple of small gussets fitted to strengthen the diff mount and stop some forward / backward movement.
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Old 29-04-2020, 09:20 PM
urquattrogus urquattrogus is offline
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Dave, do you have any pics of your gussets? (oo err)

Maybe triangular ones on the outside of each side of the mount.

I'm taking the rear axle out, the dual ear does seem a bit involved so maybe just some mild re-inforcement. We have a coded welder at work so I was thinking of asking him to take a look.
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Old 07-05-2020, 06:08 PM
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Quote:
Originally Posted by urquattrogus View Post
Dave, do you have any pics of your gussets? (oo err)

Maybe triangular ones on the outside of each side of the mount.

I'm taking the rear axle out, the dual ear does seem a bit involved so maybe just some mild re-inforcement. We have a coded welder at work so I was thinking of asking him to take a look.

Just seen this - yes picture added to your journal
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