1985 90, Rover Rear Diff - Splines?

[zeaphod]

As per the title, I need to know the number of splines on the rear (drum braked) rover diff on my 1985 90".
I know I can check by taking one out, but I'm at work, and would like to order new driving members in time to get them for the weekend. So what 'should' they be? My parts manual is for a 110, which I know can be different - salisbury diffs etc.
All thoughts appreciated.

 

[the_wolf]

I may be wrong but I think before 1993 all rover diffs were 10 spline

 

[zeaphod]

I may be wrong but I think before 1993 all rover diffs were 10 spline

Thanks Wolf, having looked around the forums (foura?) that seems to be the general impression.

 

[zeaphod]

Well now, having looked at whats actually fitted and checking and checking with the FF site using the VIN , it looks like almost all the pre 93 models use a 24 pin shaft/member.

 

[jackmac]

I thought all drum braked rear axles were 10 spline out of the factory? 10 vs 24 spline refers to the number of splines on the diff end of the shaft, not the wheel end

 

[jamesmartin]

Well now, having looked at whats actually fitted and checking and checking with the FF site using the VIN , it looks like almost all the pre 93 models use a 24 pin shaft/member.

10 splined diff,drive members differ due to thickness

 

[zeaphod]

As per the oracle above - 10 splines at the diff end. There was a lot of wear on the driving member splines, not too surprising after 217k. Changing has reduced the amount of slop when changing gear a lot - almost eliminated it in fact.
A nice easy job too. The hardest part is getting the old gasket remains off the hub. I used a stanley knife blade.

 

[aaronmorris]

As per the oracle above - 10 splines at the diff end. There was a lot of wear on the driving member splines, not too surprising after 217k. Changing has reduced the amount of slop when changing gear a lot - almost eliminated it in fact.
A nice easy job too. The hardest part is getting the old gasket remains off the hub. I used a stanley knife blade.
View attachment 58359

With them both side by side you can really tell how f*cked the old ones are.