
Originally Posted by
isuzurover
Yes the P38 type diff is so names because it first appeared in the P38A RR.
As for banjo (rover and P38) vs salisbury, There are 2 main differences:
The rover and P38A diffs have an 8.25" crownwheel, the salisbury 9.75"
http://www.lrfaq.org/Series/images/R...sburyDiff2.jpg
The sals is hypoid, the rover is spiral bevel. Hypoid diffs are stronger (going forwards) as they have much more tooth contact between pinion and crownwheel for the same geometry and ratio.
http://lh5.ggpht.com/_EhOQGW2GHBg/TM...jpg?imgmax=800
In short, the sals diff centre is probably about 4x the strength of a rover or P38A
Ok, I may now have a daft question... You say the Salisbury/Hypoid is 'stronger going forward'.. What's it like in reverse... (Ie:- The front diff in my 101)? Great pic comparison too! Cheers.
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1969 (Now know! Thanks Diana!!) Ser 2 Tdi SWB
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