Quote:
Originally Posted by Krusty_s13
You can just swap the ring and pinion to a ratio of your choosing. Just make sure its a R&P for a r200.
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Not exactly, in the case of the S15 helical, the actual limited slip unit will swap over to any r200 ring gear, but the gearset (ring and pinion) will only fit in the r200 units that have the slightly longer nose.
i.e. if your s13 had an open diff and no abs, you will not be able to swap the s15 ring and pinion because the shaft of the pinion gear is much longer than the one for the s13 open diff.
However, I know of at least one company (SPL ) that makes solid conversion bushings to run an s14/s15 pumpkin on a S13 subframe. I am using these bushings on my car (s15 diff/pumpkin on an s13 subframe).
If you want to keep the stock final drive ration (4.08), then just swap over the LSD unit and stubs into your s13 pumpkin. If you want to run 3.69 gears, then all you need is the s13 rear diff cover, conversion bushings, and a shorter driveshaft.