ahmedsaleh

ok im making about 500hp wheel in my sc300..

im on stock w58 and stock rear end. rear end has 210k on it. today after doin many pulls and spinning tires till 90mph it wheel hopped pretty bad. the diff is gettin weak. still drives mint but when commin to a slow stop it sounds like teeth skipping..


my question is what rear ends will be a direct swap with no axel changes or driveshaft changes i dont care is the gearing is the same or not. the shorter the better... need something crazy cheap and fast.

this is a 1992 sc300 5 speed..

ZenkiS14

Im wondering this also.

What LSD rear ends will bolt in...

Biggu

iTrader: (12)

Id highly suggest getting solid diff mounts and sub frame mounts in your car. not sure on the diff subject but it sounds like you need it.

ishootstuf

iTrader: (1)

Really unlikely you're skipping teeth. Have you tried draining the fluid and looking for metal? If there are no abnormal shavings, your diffy is prolly fine. If its skipping teeth, there will be a ton of metal in there. I'd look at your U-Joints or maybe bearings in the tranny.

Wheel hop is not an indication of a bad diffy, it's caused by suspension setup/condition and tire type. It could be as simple as shocks.

ahmedsaleh

i jacked it up and you can rotate the drive shaft more than a quarter turn before it even hooks. and make a clunk.

ishootstuf

iTrader: (1)

Wow, I guess that's something I'd have to see to believe. I don't see how it could drive fine until you go slow with a condition like that! Of course, I did something to my engine I wouldn't believe without seeing...

nate579

iTrader: (4)

WOW!!!! That's some serious torquing.

5sp_jzz30

iTrader: (2)

your pinion gear and ring gear teeth are worn out. that is why they are clunking. my diff started doing that after getting welded and drifted on for 3 seasons. that portion of the diff will be fine and will never break. it will just make noise.

the big deal is the spider gears breaking. if that happens then your car is dead in the water.

i have broken a stock diff on stock motor before lol

get another sc300 diff or an sc400 diff.

toyota supra mk4 na or tt automatic diff will bolt right up too.

you can get a mk4 supra tt manual diff but that also requires a left, im pretty sure, axle change. those are pricey though.

ishootstuf

iTrader: (1)

That's how I pulled it out of the car. I started to unbolt the torque converter, then realized I didn't need to because two bolts snapped and the others came out. This is the original engine and tranny so it's still a mystery to me how it happened.

BTW, it's a 5 speed now...

ahmedsaleh

found one for $250 with 90 day warrenty from a local yard.. what fluid should i use in it..

5sp_jzz30

iTrader: (2)

use regular gear oil you find at an auto store. dont waste your money on crap like redline.

250 seems a bit steep. i got my first one for 200 and i felt i got ripped off and the only reason i did it was because mine already broke.

i bought a spare, which is still in the garage, for 75 bucks. and it came out of a car with 70,000 miles.

unless you are desperate for one i would keep looking around.

i have seen people on here sell stock diffs for 50-100 bucks.

JspecSC3

iTrader: (4)

If you want something cheap with close gears I suggest sourcing an auto diff. Ive had one go bad on me before. Same symptoms as yours. The wheels even skipped when I made a left or right turn slowly.

ahmedsaleh

well i have a choice to get the auto witch is 4.27 gear i think. go back to mine 4.09 or one from an sc400 i think its like a 3.90.. i do alot of highway runs. 40mph to 140-160. what would be better for me. also only reason i want the same one is the speedo will be off with the other ones. prices i found were from 250-200.

ahmedsaleh

prices do seem kinda steep but what can i do. there isnt any local car scene like mine. im the only turbo sc that ive seen around here.

i think there is an na-t that just got done and maybe one other one in my area

buckwheat

sorry to step in on your thread but was wondering my self what would work best in my sc 300 im making about 450 in horse and would like to know i herd that the 2000 gs 400 works good and the turboed auto supra works good to but whats the best and the cheeper way to go