Thread: Rate my donut!

I would be more concerned with all that oil that appears to be coming out of the pinion seal

Yep Pinnion seal first
I prefer unis but that is me . Replace ya donut if doing a big trip and keep the old one as a get out of jail

Mario gives good advice....

As you will be removing the shaft for the pinion seal, I would replace the donut at the same time (and bolts) and also consider the front uni joint too.
keep the old donut (as also recommended) . It doesnt look too bad, I replaced mine but the rubber had perished and cracked around the bolts...ie it was obviously stuffed...but still working.

have fun, robbo

if the donut has been there the entire time of the lift,, leave it alone untill it starts to crack,,
some dont handle lifts at all,, I think Slunnie is still Donut King...

I'd say leave the donut too.
I did mine 30K klms ago, still no issue.
If it does break, they're easy to fix out in the sticks with minimal tools.
Much harder to fix a uni by comparison!

I can't work out how much lift my D1 has on the rear, but it's min 1" looks more like 2". Rear is about 1" higher than front.

Mine was split when replaced, so I have no spare .. but if anyone knows are there any manufacturer that do polyurethane roto's?

And as already said about the pinion seal, sort that out as a priority and follow deadfishdiscos advice on that.

Sounds like good advice, I wonder is the pinion seal an easy fix...

Went to change the donut on mine this afternoon. Whilst changing the rubber over on the road would be quicker/easier than a uj, you would probably skip the bush in the prop which should be done if you want your new donut to last.

I got a replacement bush for prop and new pin/spigot for diff end. The bush took an hour of mostly hammering to remove from the prop. It was near enough welded in there.

You will need to remove the locating pin on diff end to replace pinion seal so you might as well replace it if worn at all. It has a M8 thread for a puller but mine did not budge 1mm. Stripped threads on two bolts and broke a ratchet spanner trying to extract it. Given up as not essential, pinion seal is good. Good luck with yours, some heat might help.

Another round of grief from that donut setup and I'll be converting to UJ.

Originally Posted by Young Angus

Sounds like good advice, I wonder is the pinion seal an easy fix...

Harder on rotoflex diffs as you need a puller to remove the spigot.