diff removal/instalation writeup.

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  1. #1
    CelicaSupra.com Member williamb82's Avatar
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    diff removal/instalation writeup.

    the best thing is to jack it up as high as you can then put jack stands under it on the frame rails. NOT THE REAR SUBFRAME MOUNTING POINTS!!!! that will cause the subframe to tilt and be a pita to reinstall. btdt.



    remove the 4 nuts holding each half shaft to the diff.(14mm)



    then remove the 4 nuts and bolts that are holding the drive shaft to the diff.(12mm)



    then remove the 2 19mm nuts that are facing the rear of the car just above the sway bar. leave the 2 bolts in the holes to hold the diff when you remove the other bolts.


    now remove the 4 17mm bolts from the top of the diff., then remove the 4 17mm bolts on the sides of the diff.(2 on each side)


    once all bolts are removed, put a jack under the diff., leave about 1in between them. pull the 2 bolts that had the 19mm nuts on them out. you will probably have to smack it with a wrench. once it jars free, lower the jack and pull it out.

    for reinstallation, place it on a jack and roll it underneath lined up as best you can. jack it up into place. if it seems to catch, keep jacking it up SLOWLY, it will pop into place, once it does, be sure those 2 bolts on top line up first(the large 19mm bolts) and slide the bolts through. you may have to hit it to knock it one way or the other, you may also have to slightly lower the jack.



    once you slide those in, lower the jack from the diff and place it under the nose of the diff. slowly jack up the nose of the diff until the front side bolts line up.


    then put the 4 17mm bolts in on the sides. once screwed almost all the way in (DO NOT TIGHEN THEM YET) try putting in the 4 top 17mm bolts if they dont quite line up, try raising the nose slightly, they should line up.


    once those 4 bolts are threaded in, tighten all 8 of the 17mm bolts, then tighten the 2 19mm nuts onto the bolts coming through the top rear.


    then bolt the drive shaft and half shafts back on(preferably with new lock washers).



    then jack the car back up and remove the jack stands, lower the car. guess what, your fininshed.
    Last edited by williamb82; 02-05-2007 at 04:06 PM.
    william
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  3. #2
    CelicaSupra.com Member karnag3_0kc's Avatar
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    Talking Whats the actual name of the part?

    Isnt it LSD? i need to buy that part for my 83 supra, so what should I tell the place to order them? do u kno what size i need? do you kno where I can buy them? plz respond or private message me...i really need that part.

  4. #3
    POTATO Tanya's Avatar
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    uhh

    two differential types available
    limited slip = 2 wheels spin
    open = only one wheel turns


    Now that you know that much, your 83 P type Supra should have a 4.10 limited slip differential with 7.5" ring gear. Your best bet would be to go to a junkyard, as these babies cost $1,300 new from Toyota (last I heard)

    You will need to look at the donor cars data plate under the hood to find out what gear ratio it has, you should be loooking for a F293

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    CelicaSupra.com Member karnag3_0kc's Avatar
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    Oh

    thanks i really needed that =)

  7. #5
    CelicaSupra.com Member RiverRat Cargel's Avatar
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    i have a 84 l type (i think) and i put a new LSD in it out of u-pull-ti last year. the car i got it out of had not motor, tranny, dash, flares, hardly anything so i dont know what type it was and i couldnt tell the year other then a MKII. how cant i check what ratio my LSD is? is it printed somewhere (other then the engine bay of the donor car) or do i need part numbers?
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    spin the input shaft and see how many cycles it takes the output (side) shafts to spin once.


    Grant

  9. #7
    CelicaSupra.com Member pituala's Avatar
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    Quote Originally Posted by RiverRat Cargel View Post
    i have a 84 l type (i think) and i put a new LSD in it out of u-pull-ti last year. the car i got it out of had not motor, tranny, dash, flares, hardly anything so i dont know what type it was and i couldnt tell the year other then a MKII. how cant i check what ratio my LSD is? is it printed somewhere (other then the engine bay of the donor car) or do i need part numbers?
    Did you happen to count the teeth on both the ring and pinion gears? If not, spinning the pinion around until the axle hub makes one complet revolution works also.
    '85 P-Type 1J "The Torqueless Wonder"
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    CelicaSupra.com Member ddd228's Avatar
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    non LSD=LSD? ~^~

    Can the spider gears be shimmed to make it not so non-lsd?I wanna change the diff oil to synthetic and clean up the cover and replace the gasket and as long as I was in there...

  11. #9
    CelicaSupra.com Member pituala's Avatar
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    ?????
    '85 P-Type 1J "The Torqueless Wonder"
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  12. #10
    CelicaSupra.com Member williamb82's Avatar
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    Quote Originally Posted by ddd228 View Post
    Can the spider gears be shimmed to make it not so non-lsd?I wanna change the diff oil to synthetic and clean up the cover and replace the gasket and as long as I was in there...
    only thing you can do to a non lsd diff to make it lock is to weld it, which isnt recomended at all. your turning radius will completely suck and the car wont handle properly.
    william
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