I have an FD diff casing, with all the goodies except the Torsen and bearings - it\'s too heavy to post, so anyone who wants a spare case or has another diffential gear lump that needs a home, I can let you have this for a song (£20)
Do you know the ratio?
If its a 3.9 or 4.1?
Is there an easy way to tell Carl ?
If it\'s any help, it was Aceman\'s old Diff before he Steve replaced it on the major upgrade.
Quote from: Prof;857423Is there an easy way to tell Carl ?
If it\'s any help, it was Aceman\'s old Diff before he Steve replaced it on the major upgrade.
Count up the teeth on each gear and divide the bigger number by the smaller
Quote from: JohnC;857624Count up the teeth on each gear and divide the bigger number by the smaller
Yes, that\'s one way - but I wondered if the crown gear had some number or mark stamped on it - I\'ve put the back cover back on the diff, so without taking it off to count teeth on the pinion, I just wondered if it was marked anywhere.
Hi dave
How\'s life treating you?
Its stamped on the crown wheel, the prop flange is different as well but that could have been changed.
Phil
suppose you could turn the prop side (FLANGE) and count the number of rotations for one full wheel turn cycle. 3.9 turns or 4.1 full turns per full wheel cycle indicates the type of diff...think ive got that the right way round...
Quote from: philiwily;857684Hi dave
How\'s life treating you?
Its stamped on the crown wheel, the prop flange is different as well but that could have been changed.
Phil
Not too bad thanks Phil :-) See - I knew someone would be along with an easy answer :)
Quote from: bin liner;857706suppose you could turn the prop side (FLANGE) and count the number of rotations for one full wheel turn cycle. 3.9 turns or 4.1 full turns per full wheel cycle indicates the type of diff...think ive got that the right way round...
I could, but since I\'ve taken the Torsen out, and it doesn\'t have drive shafts with it, and I\'ve unbolted the crown from the Torsen, that options is out. Also, the diff housing has the back plate bolted back on, which means I can\'t easily count the pinion gear teeth.
Off to the garage to look for stamped numbers...
Quote from: Prof;857709I could, but since I\'ve taken the Torsen out, and it doesn\'t have drive shafts with it, and I\'ve unbolted the crown from the Torsen, that options is out. Also, the diff housing has the back plate bolted back on, which means I can\'t easily count the pinion gear teeth.
Off to the garage to look for stamped numbers...
lol...didnt read that bit....its probably a 4.1 and im guessing carl is after a 3.9...you might get lucky though :Thumbsup!
Ok, crown / ring gear is stamped P061, so it\'s a 4.10 diff ratio from a 93-95 car.
Just to remind everyone, it\'s the diff case, pinion gear and ring gear that I\'m selling, as I\'ll just be swapping the differential itself into the FC diff. So the diff being offered is INCOMPLETE, you\'ll need to provide the Torsen or other diff unit to bolt back onto the crown / ring gear...
the one coming out of your fc, is it a turbo 2 plated diff?
Quote from: bin liner;857719the one coming out of your fc, is it a turbo 2 plated diff?
I think it will be either an open diff or a warn out viscous LSD, really not too sure as the rear wheels sometimes behaved a little odd when rotated with the car up on axle stands.