8 3/4 GEARS

Ashley · Post by **Ashley** » Sun Jan 21, 07 6:07 pm

Anyone have a conversion chart for working out ratio's by counting ring & pinion teeth Please.

Kev · Post by **Kev** » Sun Jan 21, 07 6:21 pm

Yep! It's called divide the big number by the little number!

Mick70RR · Post by **Mick70RR** » Sun Jan 21, 07 6:22 pm

Just divide the number of teeth on the ring by the number of teeth on the pinion.

Ashley · Post by **Ashley** » Sun Jan 21, 07 6:25 pm

Done that Kev, since when did chrysler do a 3.63.1 gear set

Jon · Post by **Jon** » Sun Jan 21, 07 6:27 pm

do it again

is the ring gear not stamped? mine was...

Ashley · Post by **Ashley** » Sun Jan 21, 07 6:32 pm

My calculator say's 40 divided by 11 is 3.63

Jon · Post by **Jon** » Sun Jan 21, 07 6:33 pm

demand a recount of the teeth...
if you had 3.55s it'd be 39 divided by 11

Ashley · Post by **Ashley** » Sun Jan 21, 07 6:35 pm

Yep four times dun that

Jon · Post by **Jon** » Sun Jan 21, 07 6:40 pm

well keep trying

Kev · Post by **Kev** » Sun Jan 21, 07 7:37 pm

Gear ratios available on the 8-3/4" axle through the years include: 2.76, 2.93, 3.23, 3.31, 3.55, 3.73, 3.91, 4.10, 4.56, 4.89, 5.17, 5.57. On OEM gear sets, the ratio is usually stamped on the ring gear edge. Ratio may be determined by the number of teeth on the ring gear divided by the number of teeth on the pinion gear or by counting the ratio of the number of turns of the pinion relative to one turn of the axle shaft.

Kev · Post by **Kev** » Sun Jan 21, 07 8:08 pm

Take a pick and let us count!