differential bush

handsomejackuk

handsomejackuk

Zorg Guru (III)
Australian Zeds
The M44 Massive
Joined
Aug 8, 2016
Points
145
Location
t
has anyone done the differential bush without removing the diff and sub frame, i want to drain and change the diff oil, so figure if i take the diff cover off too, i can change the diff bushing...?

any thoughts

IMG_1026.jpg
 
Yeah two ways,

Stick a jack under the diff and remove the diff bolt, lower gently and it will just clear the hanger.

Or like In your photo remove the case cover.

P.S stick a peg over your nose when you open that case it really stinks!
 
Yeah, its not too difficult, only hard part it's getting the metal part of the bush out of the diff cover, I just cut it out using a saw.. +1 on the peg, it smells horrible, I hurled a couple of times haha
 
We lowered the diff down and and did it that way. Took 10 minutes.
 
I bought a new poly diff bush a few months back just as a precaution as I was told mine looks tired but it's still in the boot not fitted as don't know how and not a job for a girl.
Car seems to drive fine on old one.
Tracy.
 
Is it easier to fit a polybush? I'd rather fit the OEM rubber one...
 
Alan W said:
Is it easier to fit a polybush? I'd rather fit the OEM rubber one...
Click to expand...
The poly bush will way out live the oem rubber ones. No different to fit other then cutting the small metal ring out of the housing.
 
Thanks Grumpy.. I am just concerned that the poly bush will have less 'give' therefore putting more strain on the boot spot welds.. just a thought..
 
I lowered diff just enough to clear, then hacksaw through metal band remaining in diff case, to fit oem you would have to remove cover and press new bush in, much easier to fit poly
 
Diff bush was easy, took the car to the Zed shed and @Lee did it.=))
 
The boot floor only needs extra support if you drive like a K**B

Polybushe is far easier fit, you can do it by hand. The OEM bushe needs to be pressed in.
 
Lee said:
The boot floor only needs extra support if you drive like a K**B

Polybushe is far easier fit, you can do it by hand. The OEM bushe needs to be pressed in.
Click to expand...
Is your floor stengthened mate lol!!! :D
 
Grumpy said:
Is your floor stengthened mate lol!!! :D
Click to expand...

This is the thing mate, long as you don't drive like a tool dumping the clutch and changing gear smoothly you wont strain the rear chassis. In my M I did 32,000 miles and was always progressive with the clutch, even when on track and warming up the tyres :)
 
Whoah thanks for the replies......I have a look over it the next few days.. The car is garaged and not a daily driver thanks for the tips on smelly diff oil
 
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I've driven a few cars over the years with poly bushes and wouldn't go any where near them, way to harsh and as already said it could put extra strain on the boot floor, after all you will more then likely get another 15 years plus out of a genuine one.
 
@Sean d what's the deal with having to press them in though? Would I get it off and on with standard tools or would I need anything specific?
 
I've not done a the diff on a z3 mate, we used to use a vice and socket to press them in.
 
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