Diff Spacer

[SJAM]

Hi - Haven't written much for a while as I've had to build a garage before I can carry on with my Taimar!

I've come across an surprising observation after removing and degreasing my Diff. There appears to be a 3/8" thick Ali spacer on the RHS drive flange when viewed from the rear of the car (see photo).

Does anybody know whether this a standard feature to fit the Salisbury Diff into a '78 Taimar? I know the propshaft line (from the front to the back of the car) isn't central to the drive flanges, but I thought the diff was mounted pretty central between the two rear hubs.

I'd like to be sure that it is meant to be there before I refit it.



Thanks,

Stuart.

[matt]

I think this is because your diff was probably fitted with in board brake discs (as per the Jag and Tasmin). If you look at the length of the studs you will see that the non threaded area is quite long. I'm more surprised that you haven't got one on the other side as well. You could change the studs, but it'll mean taking the flanges off which is a pain. Hope that helps.

regards Matt

[davidy]

From memory there should be flanges on both sides and not as thick as your single flange. This enables the Triumph 2000 driveshft to mount cleanly onto the Salisbury diff. I would check with Adrian Venn at Exactly TVR.

davidy

[thegamekeeper]

Definitely not standard and as already mentioned the diff you have is a Jaguar diff with provision for rear brake calipers. Is it powerlock. Most likely that someone has changed it for a Jag one to get LSD. Sure you dont have another one mislaid somewhere because the drive shaft flanges will not bolt tight without due to longer studs.Either find/make another spacer or change to shorter studs

[SJAM]

Thanks for your thoughts guys. OK so it could be that this has come from a Jag. Remind me how I can easily tell if it is a Powerlock with the Diff out of the car?

Regarding the spacer, it does look a bit weird that there isn't one on the other side, but I've already taken off and cleaned up the inner drive shafts and I'm fairly sure there wasn't another. I'll check again though, but I'm pleased that its unlikely to be due to oddly matched driveshaft lengths or a bent diff carrier.

When it comes to re-assembly I take it that providing the driveshaft flanges can tightly bolt up against the diff flanges and the outer driveshaft is properly on the splines (with no more than 10mm lateral play?) then I should be OK?

[thegamekeeper]

To check if your diff is LSD turn one of the output(driveshaft) flanges. If the other one rotates in the same direction it is limited slip. If it rotates in the opposite direction it is not. Cant see from your photo but there should be a male/female fit between the drive shaft and the diff.The spacers could be adaptors if both are male of female

[sjam]

Checked my Diff again last night. Unfortunately it is not a powerlock (would have been nice!).

Also checked a spare diff I have and the studs are threaded alot further up so I will reassemble with these studs and see how much movement there is on the driveshaft splines. If there is too much I'll make some spacers up.

Thanks very much for your help - I'm not sure I could have found this out any other way.

Stuart.