GKN Diff removal

Author
Discussion

Barreti

Original Poster:

6,680 posts

237 months

Saturday 6th October 2012
quotequote all
Anybody got any tips for dropping the GKN diff out of my Griff.
Drive shafts are off - as is the prop.

Do I undo the diff from the brackets, or the brackets from the chassis and bring them out still attached?
And how the frigging hell do I get to the top brackets - or do I leave the bracket on and remove the bolt going through the infamous top bush

carsy

3,018 posts

165 months

Saturday 6th October 2012
quotequote all
Ian, for the side brackets i dont think it matters whether they are left on or off but if off it will probably give you a bit more room for manouvre.

Re the top bracket i dont think you can get if off whilst its still in the car so just take the bolt out.

Good luck and i think i would get another pair of hands to help. Dont underestimate the weight its damned heavy.

DarkMatter

1,473 posts

231 months

Saturday 6th October 2012
quotequote all
As I recall I removed the bolts from the front two bushes and the rear bush as well as removing the front mounting plate. I did not remove the rear mounting bracket from the diff. I also screwed two long bolts into each drive shaft flange to enable the diff to rest on the chassis, I then removed them when I needed to rotate it along the cars axis to drop it through the chassis rails.

You'll need to support the diff with a trolley jack. I also used a rope around the chassis upper rails to lower the diff, made a lot easier for me because I cut an access panel in the floor.

I had to cut one of the long bolts in a front bush because it was seized - the only place I could source a replacement was Racetech Direct and it wasn't cheap (well over £10 I think).

Some useful threads...
http://www.pistonheads.co.uk/gassing/topic.asp?h=0...
http://www.pistonheads.co.uk/gassing/topic.asp?h=0...
http://www.pistonheads.co.uk/gassing/topic.asp?h=0...

del 203

12,728 posts

249 months

Saturday 6th October 2012
quotequote all
Top tip dont drop it like i did !!!!



Luckily my arm boke the fall yikes and i didn't damage the diff rolleyes

Barreti

Original Poster:

6,680 posts

237 months

Saturday 6th October 2012
quotequote all
Thanks for the help guys. Your right, it's a mixture of removing all the bush bolts, remove the front brackets and wiggle the diff until it comes out slightly sideways.
The back brackets can stay on, which is just as well as I don't have a 7mm Allen socket doofer what a bloody stupid idea to use that size.

Thanks all.