J30 diff in S13 HELP!!!! LIKE FOR REAL XD

[LoLaDriftingEmo]

ok i have a j30 diff that i really need to put in my s13just wondering what all do i need to put it in correctly i keep on reading that i need to take out the old bushings and replace then with washers and extended bolts so it will mount up right to the s13 chaissis

i really need so edvice!!!!

[del82]

Define 'need' (= I assume that your asking for help means its not a direct bolt-in, so....

To swap the diffs, you'll probably need a plumb bob, angle finder, some scrap steel bars and plates, or prefab components for the swap, you'll need a new driveshaft end and U-joint from the vehicle you got the diff out of, and possibly a whole new driveshaft if the sizes are too different. You'll need some means of centering the rear axle in the fabbed housing, then you'll need the axles from that diff unless the splines and size match up with the old axles, if they don't you'll also probably need new bearings, rear spindles and a braking assembly unless you want to modify your existing stuff rather extensively, and on that note possibly new brake line ends or longer lines, and you may need to modify the spindle mounting flange on the strut to accept the new spindle if you need it, and depending on your preference, you may want to change the gears in the new rear end to match the old. I think that's about it. If any of that is done badly, you may crash and die, or have a never-ending annoying driveline vibration(s). That's only, what, about 30 hours of work for a team of trained professionals? (=

So again, define 'need', heh heh. If the bushings will make it fit, you'll save the above work, and you can probably find them at the Nissan dealer, probably off the same model vehicle that came with that diff originally.

[imSUPERjon]

shorten the driveshaft about an 1" do to abs sensor position. drive shaft shop. less than above price. and it might not hurt to gank the output shafts cuz s13s use a different output flange pattern (3 pairs of studs) as opposed to the j30 i saw in the junkyard earlier ( 5 in a star). good luck!

http://www.240sx.org/links/installs/lsd2/index.htm

[leonelrr]

This has been covered like a million times before.. SEARCH!Anyways depends if it is a PRE 95+ J30 then you'll need to swap the out put shafts.. If it comes from a 94.5 and up then u don't need to change anything..Just swap the diff cover fron ur diff to the other one, bushings and bolt everything up..Doesn't matter if you have an ABS driveshaft or not it will still bolt up. Your transmission and engine mounts are probably old anyways so it will compensate for the extra lenght of the ABS housing..

Other then that, just make sure you change the diff cover gasket and add some new gear oil.. Good luck..