Supra 5 speed?

[vkwalks39]

Gday guys, Can I put my Supra 5 speed behind my V8? How much power can they take? I don't know much about them. Any info would be great thanks guys for your help.....Cheers Jason :hmmm:

 

[Tree cutter]

The later Supra boxes are stronger. The early ones are a W series box the later are R series which are also used in some landcruisers and prados with different ratios. Landcruiser owners will tell you they are weak, but they will take a fair bit of punishment on a two wheel drive vehicle. People use either a W or R series gearbox when putting a V8 in a Hilux 4X4 so it should last in a Commodore that wont have the traction of a 4X4.

 

[GenReaper]

If your gonna do it make sure its a Steel case box, the alloy ones tend to split the casings with power.
They say that the W58 gearbox is the strongest tho, but im skeptical.
Pretty sure you want the one with 21 spline output shaft designated P51 or W50

They are strong but better in a lighter car with less loading, so if its going in an early model commodore should be ok.
Depends on how much power you intend to put thru it and if you abuse it or not.

Try getting one from 6 cylinder Coronas and imported Crowns and in these applications they were fitted with a heavier-duty needle roller bearing in the front cluster.
But most of the time you cant tell unless you pull them apart, but they are cheap enough anyway if you can find them.

TOYOTA STEEL CASE 5 SPEED CONVERSIONS
RATIOS OF CROWN, CORONA, CELICA AND CRESSIDA BOXES
1ST – 3.00:1 1ST – 3.29:1 1ST – 3.52:1 1ST – 3.62:1
2ND – 1.99:1 2ND – 2.04:1 2ND – 2.05:1 2ND – 2.04:1
3RD – 1.39:1 3RD – 1.39:1 3RD – 1.39:1 3RD – 1.39:1
4TH – 1.00:1 4TH – 1.00:1 4TH – 1.00:1 4TH – 1.00:1
5TH – .85:1 5TH – .85:1 5TH – .85:1 5TH – .85:1

 

[vkwalks39]

Thanks guys for your help. I'm thinking putting it in my vh commodore that has Holden 253 blue, which only has a stage 2 cam, it's nothing special. We will be doing alot of highway cruzing, and with the extra gears it would be better than the 3 spd trimatic. And, also has 3.08 diff ratio too.......Cheers Jason

 

[padrickz88]

Expensive but try and get an r154.......

 

[vkwalks39]

the gearbox is alloy, will it be ok to put it behind the very mild v8? I dont what put it in and then go down the road and it will go bang!!

 

[delcowizzid]

ally case with steal sandwhich gearplate is strong as if you dont drop the clutch or tow/thrash in 5th doesnt take bugger all to kill fifth gear used to run supra boxes behind my 308 vk and a 350 chev hz ute good if you are nice to them.mine just had a 3 speed front shaft welded to the toyota one works great on a mild 308

 

[vkwalks39]

bugger!! i do drive my car abit hard. i should think about abit more. Cheers Jason

 

[vkwalks39]

Gday guys, I had the gearbox in my car. I've just pull it out, so, I'm going to try put up some pictures for you. Could someone let me know what it is? thanks heaps Jason

 

[vkwalks39]

Can someone tell if this is a supra or a celica 5 spd? can it go behind a mild 253.... thanks Jason