Hello
This is more of a two-part curiosity question but one I’ve wondered about since learning the little I think I know and we all know how dangerous a little knowledge can be.
The rear diff for my LH119 is a ‘G145’ and there are plenty or resources that describe this is a:
G = 8.00 inches
14 = 4.875 ratio
5 = 4 pinion limited slip
This all seems about right based on revs and the way it performs. BTW with a LSD, with both wheels off the ground (and gearbox engaged) when you hand turn one wheel the other spins in the same direction. With an open diff the other wheel turns backwards but a broken open diff spins the other wheel the same as the spun one. As I’ve found to my cost.
I’ve read that the front diff is a 7.5 inch open variety but not managed to find any other info, so:
1 – does anyone know the model, code, pinions etc for the front diffs? I can’t find anything.
2 – if the front diff is a 7.5 inch how is the different crown wheel (ring gear) size matched to the rear? Is there a gearing in the transfer box to spin the prop shaft going to the front diff at a different speed (to the rear) or do both prop shafts turn at the same revs (my guess) but then is the gearing in the diff different to accommodate the different crown wheel size? Therefore the gear ratio is effectively higher in the front diff? If so what is this?
Cheers!