I have a spare UN1 box supposedly out of a 21 Turbo, - pulled the bell housing off to read the numbers on the crown wheel, but I can't find any info on what they mean - anybody who can point me in the right direction?
on the crown Wheel and on the attack pignon the numbers should be the same....what the m1050 means i dont know.... yet
the 127 - 09 means 9 th diff manufactured on day 127 of the year. this is what i finf in the original w/shop manual from Renault those days....1980...
hope this helps
Greetings from Centrafrica Bangui ...... back home in France very soon
If you can't find UN1-13 on crown wheel then it won't be a 21.
I think you might have a garden variety 4 cyl box...they seem to have the numbers etched into the 'bevelled' edge of the ring gear(like in that diagram) instead of on the face like the turbo's and V6's.