Diff removal
Diff removal
Author
Discussion

andyy

Original Poster:

238 posts

288 months

Friday 22nd February 2008
quotequote all
Hi there

I'm hoping to remove my diff this weekend from a 1993 500.
I've got the drive shafts off and having a quick look around it appears that the diff is wider than the gap between the chassis rails.
Am I going to be able to get it out easily - I should like to lower it on a jack ???

Also the mounts look pretty difficult to get at - particularly the top one - any handy hints on what I should be doing ?

Please please dont tell me i've got to take the body off eek

cheers Andy

spend

12,581 posts

281 months

Friday 22nd February 2008
quotequote all
You have to (lift &ampwink turn it through 90degs, so the drive shaft flanges are pointing up/down instead of left/right. Then the rear can be lowered out, drop this downwards and then the nose can be drawn out last of all. It is essential the car is high enough to do this BTW.

Dave

tbdgriff500

1,647 posts

233 months

Friday 22nd February 2008
quotequote all
yikesdid this on a 97 500, bloody nightmare, on axle stands,if you like your knuckles and value your own time get a garage to do it!!
there was two of us and we nearly gave up several times,trust me its a killer of a job.but good luck if you go for it.

clive f

7,259 posts

263 months

Friday 22nd February 2008
quotequote all
did this job on my own a couple of months ago, getting it out isn`t to difficult, its putting it back thats the problem, again did this on my own but used 2 ratchet straps, put these under the diff, one front on at the back and fastened off to the top chassis rails, lift away, then lower the back one to position it when its up in the chassis, takes some doing but not to bad.

spend

12,581 posts

281 months

Friday 22nd February 2008
quotequote all
I've done it a couple of times on my own. It is certainly one reason I have a preference for ramps - axle stands just get in the way.... I did need careful manipulation with 2 trolley jacks assisting the 'jiggling'. I am not a Gorilla by any means and managed without undue stress/strain. Resting the nose of the diff on the front xmember and pushing it forward a little helps, clearances are less if you have the larger fins at the back it seems.

Dave

steve-V8s

2,924 posts

278 months

Friday 22nd February 2008
quotequote all
As said it does come out when you find the correct orientation, would imagine this to be rather challenging working on axle stands. I borrowed a lift at a local garage for the day to swap mine. It was useful to have a second pair of hands arround when putting it back.

When it goes back don’t assume (as I did ) that you can simply bolt the speed sensor bracket back on and it will be in the right place. I made this error and ground the end away before realising what the noise was.

AntonyJ

5,254 posts

311 months

Friday 22nd February 2008
quotequote all
Pah , just done mine, absolute doddle to do.
No problems at all.Took about 20mins to put in.



















But about 5 days to get the body off.tongue out

clive f

7,259 posts

263 months

Friday 22nd February 2008
quotequote all
I`ve heard your a bit slow on getting your kit off!hehe

Uncle Fester

3,114 posts

238 months

Friday 22nd February 2008
quotequote all
When you refit it use polybush mounts.
Saves redoing the job as often.

spend

12,581 posts

281 months

Friday 22nd February 2008
quotequote all
Pay attention to some of the threads about poly bushes on the early side brackets though.....

Dave

Fat Griff

176 posts

266 months

Friday 22nd February 2008
quotequote all
Easy to get out if you take the mounts off, pain to get back in! The hardest part is swopping the rear bush, which is a bit of a must have if your taking the diff out! There is an art to swapping the middle upper diff bush! But do it!

Uncle Fester

3,114 posts

238 months

Friday 22nd February 2008
quotequote all
spend said:
Pay attention to some of the threads about poly bushes on the early side brackets though.....

Dave
What about them Dave?
Do you mean pre-cat's or GKN?

Is it possible to change the diff for another type?

And is there any advantage in swapping a GKN for one of the later types?

spend

12,581 posts

281 months

Friday 22nd February 2008
quotequote all
Early chassis (Ant came across the prob as well) leave the bushes floating, they rely only on captivating the inner race, but with poly you have to somehow prevent the plastic moving fore/aft.

Dave

AntonyJ

5,254 posts

311 months

Friday 22nd February 2008
quotequote all
spend said:
Early chassis (Ant came across the prob as well) leave the bushes floating, they rely only on captivating the inner race, but with poly you have to somehow prevent the plastic moving fore/aft.

Dave
I ended up getting some that were quite near and getting them machined to suit.
Think they were some ford bush.

andyy

Original Poster:

238 posts

288 months

Saturday 23rd February 2008
quotequote all
Great answers folks - thanks very much

I'll keep you posted how I get on this weekend - just off to round up some ratchet straps and bits of wood !!

clive f

7,259 posts

263 months

Saturday 23rd February 2008
quotequote all
andyy said:
Great answers folks - thanks very much

I'll keep you posted how I get on this weekend - just off to round up some ratchet straps and bits of wood !!
don`t forget your spinnachhehe

spend

12,581 posts

281 months

Saturday 23rd February 2008
quotequote all
AntonyJ said:
I ended up getting some that were quite near and getting them machined to suit.
Think they were some ford bush.
Don't understand Ant, I thought you were going to use washers/plates to retain them? You are talking about poly ones...

Dave




AntonyJ

5,254 posts

311 months

Saturday 23rd February 2008
quotequote all
spend said:
AntonyJ said:
I ended up getting some that were quite near and getting them machined to suit.
Think they were some ford bush.
Don't understand Ant, I thought you were going to use washers/plates to retain them? You are talking about poly ones...

Dave
I was talking about poly ones, but got fked off trying to get them machined whilst frozen, back to metalastic now.

spend

12,581 posts

281 months

Saturday 23rd February 2008
quotequote all
Yup I washed out as well... Richard Thorpe got the correct metalastic ones for me so I assume they may be common with the Tuscan racers?

At least they are easy to get out and change, getting the rear top one replaced with a polybush is the main thing wink

Dave

AntonyJ

5,254 posts

311 months

Saturday 23rd February 2008
quotequote all
Yep, replaced the top one with a polybush.