21 replies to this topic

[gino_xl]

Me, Charwie and Tof decided to swap over some diffs.

Once the car was on the stands we started to remove the diff housing.

The rear sway bar will need to be unbolted from the chassis for access to the rear diff mounts.


We first removed the bolts on each side of the side shafts.



Then the tailshaft.


We had to put the car into neutral and handbrake off to rotate the shafts to get access to the bolts.

Then the rear mounts. (My bushes are starting to crack)


Last was the top mounts to the chassis.


Once these bolts are off we placed the trolley jack under the diff and slower lowered it down.

Bushes from the inside.


The housing is off.


Drain plug with chunks of open diff on it.


Crack open the housing to reveal an open wheeler - B01B.


Tap out the side gears with a hammer and bar. Notice the difference in length of the side gears
Open on the left and torsen on the right.


We then used a bar to push out the centre through one of the side holes.

Kaaz 2-way LSD vs Torsen


2-way vs Torsen vs Open Wheel



Once the centre was out we needed to remove the crown.
For this we needed to find a vice to hold the centre so we could remove the bolts holding the crown.
The metal shims need to be bent out to access the bolts.
Once the bolts were removed we used a hammer and blunt end screwdriver to hammer the crown out through the bolt holes.
Once the crown was loose we used a flathead screwdriver to pry it out.


Both the crown and pinion have the ratio stamped on it.



Put the crown onto the torsen diff, use a torque wrench to bolt it on with the right specs.
Torsen Diff with 3.9 ratio ready to go back into housing.


Pop the centre back into housing, hammer the side gears in, apply a layer of copper silicon on the case and bolt back on.
Fill it up with 1.3L of gear oil and do the reverse to put it back on the car.

[TRD JZX100]

Very nice write up, thanks for sharing. When are the videos of the skids going up in the VIP section?

[ovaxitd]

so you took your crown off the open and put it on the torson and put the torson back into the open diff housing using the old torson bearings?? did you bother about the backlash etc??

[gino_xl]

yes. using the the side gears from the torsen housing too (longer ones). didnt need to make any adjustments to it mechanically.
the pinion from each housing was never removed.

[Sonic]

ovaxitd, on Dec 28 2008, 06:17 PM, said:

so you took your crown off the open and put it on the torson and put the torson back into the open diff housing using the old torson bearings?? did you bother about the backlash etc??

as long as the 2 side spacer shim/washers were replaced in the same position in their original housing's then there shouldn't have been any trouble with backlash.

when i replaced the open wheeler for a LSD Cusco in mine, i checked the 2 side spacers and found they were each a different thickness. i made sure they went both went back in their original position and i have no diff noise or excessive clunking.

[ovaxitd]

sic..top work fellas... just wondering thats all..... when you pullin that out for me anyway sonic ;p

Edited by ovaxitd, 28 December 2008 - 11:55 PM.

[chaRwie]

i also recommend changing the oil seals for the side shafts
$30 a side from toyota isn't much for ease of mind
they are exactly the same part number as MX83 Cressida ones 90311-43001

and if ur diff mounts are farked like above, part number is...
41651-22060
41651-22070

also if u have to change the bearings from ur torsen/openwheeler to ur new LSD, u'll need a puller tool/or a mechanic to do them, cuz they are pressed in. (near impossible to hammer it out) .......or brand new ones are $100 a side!!

jon got the picture of the two cars in the garage?
oh i'll upload the openwheel burnout later

[gino_xl]

no pic of car, send me the vids. wanna make sure i dont incriminate myself

[ToF]

Chhhhhaaaaarrrrrliieeeeee, Chaaarrrrlieeee... blackmail Gino dawg!

[mikes86]

Im still trying to understand what you guys have done. You replaced the open wheeler with_____? and replaced the torsen with______? Must be my bad english and the abuse of alcohol over the silly season that has made me miss it.