Diff Differences

[aonuku3]

are the diffs from an a31 RB20e powered cef differnt from the RB25 or turbo ones?

[adrnln]

Factory Cefiro 5 speed turbo diffs apparently have a different ratio but are still a r200 style diff.

Ive jsut had mine fixed as she went bang and have a s13 that has been shimmed up til it's locked. Ceffy has a 3.5:1 I now have a 4:1

[daisu]

There were a few different diff options.

Pretty sure that turbo models had LSD's standard (like most of nissan's range).

Whether it is an R180 or an R200 is another thing.

You can tell the difference between an R180 and an R200 because the R180 has half ring things bolted onto the side of the housing where the halfshafts come out.

If you have an R180 you can swap it with an R200 as long as you make sure the new diff has the same bolt pattern to connect the halfshafts/driveshafts.

As for ratios, not entirely sure. You can calculate your ratio when you have the diff out, you have to drain the oil and take the back cover off and count the number of teeth on the crown wheel, then count the teeth on the pinion gear and divide the crown wheel teeth by the pinion teeth to give your ratio.

[aonuku3]

Factory Cefiro 5 speed turbo diffs apparently have a different ratio but are still a r200 style diff.

Ive jsut had mine fixed as she went bang and have a s13 that has been shimmed up til it's locked. Ceffy has a 3.5:1 I now have a 4:1

thanks bro mint