The first part of the upgrades were on the gearbox which included swapping out the standard diff with a new upgraded one. The one i purchased was the Quaife ATB LSD. It was highly rated by others and was suppose to feel very standard until the diff was pushed hard.
I followed the guide from another forum (link) which helped out heaps but what they failed to elaborate on was the installation of the bearings. These had to be sourced else where as the diff does not come with any. You may also want to look at replacing the driveshaft dust seals and the diff speedo gear driver if ordering from Toyota. I opted to use the existing speedo gear driver from the standard diff as it was still in good condition. I had originally intended in purchasing new bearings from Toyota but found this to be expensive ($90 each) and time consuming (3-6 weeks from Japan). I decided to remove the bearings and take them into my local bearings shop, Statewide Bearings, and had hoped they could match them. Luckily the guy was able to source one locally and the other interstate. The cost at no more than $140 including dust seals and the interstate shipping. Pretty happy with that!!
The part numbers are as follows:
Top bearing - Koyo TR080702J/1D
Bottom bearing - Nachi 038KC68
Note that removing and installing of bearings had to be done using a hydraulic press.
I followed the guide from another forum (link) which helped out heaps but what they failed to elaborate on was the installation of the bearings. These had to be sourced else where as the diff does not come with any. You may also want to look at replacing the driveshaft dust seals and the diff speedo gear driver if ordering from Toyota. I opted to use the existing speedo gear driver from the standard diff as it was still in good condition. I had originally intended in purchasing new bearings from Toyota but found this to be expensive ($90 each) and time consuming (3-6 weeks from Japan). I decided to remove the bearings and take them into my local bearings shop, Statewide Bearings, and had hoped they could match them. Luckily the guy was able to source one locally and the other interstate. The cost at no more than $140 including dust seals and the interstate shipping. Pretty happy with that!!
The part numbers are as follows:
Top bearing - Koyo TR080702J/1D
Bottom bearing - Nachi 038KC68
Note that removing and installing of bearings had to be done using a hydraulic press.
Diff ready and waiting to be installed.
With the gearbox off it was a good reason to upgrade the clutch and replace the rear main seal. I did forget to take progress pictures during the install but see below for the clutch used.
Xtreme HD Clutch Kit - KTY22066-01A
This is a upgraded pressure plate (40%) and an organic type disc.
Xtreme HD Clutch Kit - KTY22066-01A
This is a upgraded pressure plate (40%) and an organic type disc.
Machined standard flywheel - a must do for new clutches
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