lynx40

New Member
hi
Just investigated the rumbling sound as mentioned in my previous post only to find that the rear doughnut is breaking up and causing wear marks on the bolts and prop flange how easy is this job to do ie:minimal tools and on your back as i'm away on holiday towing or will it be a garage job thank's
 
It's not too hard to do - bit fiddly, but I managed it with an adjustable spanner and a decent socket set with wobble bars.

If you buy a prop donut kit that comes with the shaft centring bush, bear in mind that it is a little bastard to remove from the end of the shaft.

Make sure you put the donut on in the right position - there are marks on the (genuine) donut to indicate this.

David
 
Removal:

- loosen 4 x 9/16 nuts on hand brakes end of rear prop shaft

- remove 19mm bolts & nuts from differential end of prop shaft

- remove loosen nuts on hand brake end of prop shaft, wiggle the prop shaft flange away, then slide prop shaft out of rear differential centering pin

installalation:

- jack up one side of rear wheel, allowing wheel to be able to spin

- attach new rubber coupling onto prop shaft while it's out, making sure 'triangle' on side of rubber coupling pointing towards prop shaft flange. Use new bolts & nuts.

- slide prop shaft back onto rear diff centering pin, then align front flange onto hand brakes mounting bolts, attach and tighten new 9/16 nuts

- align bolt holes of rubber coupling to the rear diff flange by spinning jacked up rear wheel. Fit new bolts & nuts.

OR........replace rear diff flange with a 200tdi 4 bolt flange, and replace reap prop to a 200tdi rear prop with 4 bolt flange & UJ. You can then do without the rubber coupling. Removing & installation of rear diff flange is another story tho, with lots of swearing if not done properly.

Got my disco for about 22 months now, original rubber coupling lasted just 4 months after having the disco. Fitted 3 more rubber couplings since, with the last one only lasted 3 weeks.
 
Removal:

- loosen 4 x 9/16 nuts on hand brakes end of rear prop shaft

- remove 19mm bolts & nuts from differential end of prop shaft

- remove loosen nuts on hand brake end of prop shaft, wiggle the prop shaft flange away, then slide prop shaft out of rear differential centering pin

installalation:

- jack up one side of rear wheel, allowing wheel to be able to spin

- attach new rubber coupling onto prop shaft while it's out, making sure 'triangle' on side of rubber coupling pointing towards prop shaft flange. Use new bolts & nuts.

- slide prop shaft back onto rear diff centering pin, then align front flange onto hand brakes mounting bolts, attach and tighten new 9/16 nuts

- align bolt holes of rubber coupling to the rear diff flange by spinning jacked up rear wheel. Fit new bolts & nuts.

OR........replace rear diff flange with a 200tdi 4 bolt flange, and replace reap prop to a 200tdi rear prop with 4 bolt flange & UJ. You can then do without the rubber coupling. Removing & installation of rear diff flange is another story tho, with lots of swearing if not done properly.

Got my disco for about 22 months now, original rubber coupling lasted just 4 months after having the disco. Fitted 3 more rubber couplings since, with the last one only lasted 3 weeks.

Or you could just undo the six nuts/bolts on the rubber coupling, slide propshaft forwards on splines, remove rubber coupling, insert new coupling, refit bolts.
!5 minutes on my back last week, no problems at all.
The original rubber coupling lasted 15 years and was still perfectly serviceable. I only changed it to be sure.
Just remember to chock the wheels. When you undo the bolts-no handbrake.
 
a good bit of advice is dont buy a cheap doughnut because they start to crack after a few weeks and last at most 8 months
 

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