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3.9 diff
Posted: Fri Feb 22, 2013 4:38 pm
by a8pte
please can anyone tell me how do you tell if it is a 3.9 or a standard diff.i have them side by side and i cant find any numbers etc and they both look the same,
Re: 3.9 diff
Posted: Fri Feb 22, 2013 5:33 pm
by bmcecosse
There will be numbers stamped - check carefully.
Re: 3.9 diff
Posted: Fri Feb 22, 2013 5:58 pm
by chesney
If you really can't find any numbers whatsoever, you'll have to count the number of teeth on the crown wheel (mark them off with chalk or something) and divide by the number of teeth on the pinion wheel. The numbers should be stamped on the side of the crown wheel though from memory!
Re: 3.9 diff
Posted: Fri Feb 22, 2013 10:59 pm
by IslipMinor
A 3.9 diff has 39 teeth on the crownwheel and 10 teeth on the pinion.
Re: 3.9 diff
Posted: Sat Feb 23, 2013 1:44 pm
by a8pte
islipminor very helpfull thanks