Differential bushes

[Curtis1360Barry]

Hello
A while ago I bought rubber front diff mounting bushes, but now
I have decided to go for poly bushes instead so I got a full set. I have
Looked at the differential bushes next to each other but the rubber one is about 7mm higher
Then the poly one? Is this the way it should be?
Cheers Curtis

[Curtis1360Barry]

?

[Deleted User]

It may be related to the pliancy of the rubber compared to the poly-bush? No real knowledge of the subject though, sorry.

[Paudman]

Am I correct that we can get the rear casing bushes in polybushes now? It may save me the bother of pressing those horrid metal things into my freshly painted rear casing.

[Steve P]

Yes you can get poly bushes for the rear mounts from the usual suppliers,i have red ones in mine.
Steve

[Goody]

I put the blue one's in the car I'm restroring.  No problem after I got the metel rings out.  I have not yet fited the steering rack or anti roll bar but they look like they will fit no problem.

[Nick Moore]

I'm not sure why the front diff mount rubber bushes would be thicker than polyurethane ones, unless, as JJ says, the rubber ones squish down to the same thickness as the poly ones. Of course, if the rubber ones have soaked up oil then they may have swelled. You want to get this bit right, or else the diff will run at a different angle than before and could cause props haft issues.

Yes, you can also get rear diff bushes in urethane. Make sure you get the original rubber bushes' outer metal sleeves out of the diff asking though, or you'll never get the urethane ones in!

[Curtis1360Barry]

Heres a picture still puzzled they also sent a spring pad bush so not sure if the kit is designed for a spitfire possibly, but seller said for spitfires and heralds?

[Paudman]

They're all the same size, as far as I know - here's a photo of some I bought a few years ago compared to the old rubber one which came off. Even so, you can't sell replacement mountings made to the size the old one eventually compresses to... how many front lower mountings were there? There should be two, but possibly the seller sent four, two extra to bolster the top ones up to the correct size?

[Curtis1360Barry]

Nope he only sent 2 :S may have to use the new rubber ones I got as well then?

[Curtis1360Barry]

have contacted the seller to see if he can send me two more and am awaiting a reply