Driveshaft and diff capabilities? r154

[drumminforev]

I am wondering if it is neccessary to get a strengthened diff or driveshaft to handle 400whp

And i believe its neccesary to get a shortened driveshaft to use the r154 on the mk2, does it have to be fabricated fresh or can it the stock be shortened.

 

[Bishop92t]

Are you asking if the MK2 drivetrain will handle that power or the MK3?

 

[drumminforev]

My question rephased

How much power can the stock mk2 diff hold
How much power can the stock mk2 DRIVEshaft hold

 

[RacerXJ220]

I was told the MK2 u-joints wont' hold much over 400whp for too long. One good hard launch.

Talk to Jawsgear.

I have a one piece steel driveshaft with spicer u-joints, and the larger yoke for the differential, rebuilt with a Detroit true track lsd 4.10. You'll also need a different yoke for the R154, as the stock MK2 yoke won't work with it.

It's ftw.

 

[drumminforev]

How much did u pay total for that custom driveshaft

 

[Sawbladz]

You will seriously want to rebuild that diff with a Tru Trac. Go to celicasupra.com and look in the FAQ. I beleive it has held up to and above those power levels before. HTH

 

[drumminforev]

What kind of cost is involved with the true trac and what whp is it good for

 

[mkiiSupraMan18]

This would be one of those times when you could go cheap and save for that 'big build' later. use the stock mkII diff and the w-58.

You gotta hit 400hp before you need to worry about what will hold it.

Guys on CS.com put 1/2js in and don't swap out rear ends. Keep the drag radials off and you will be fine.

When I graduate and start my 1 or 2j swap, do you think I'm going to worry about all of this? Nope. If I rip it all to pieces, thats just another 'you'll never guess what i did w/ all the power I'm making' story.

 

[drumminforev]

Well i would actually rather be telling storys of how i ripped a porches ass out of the hole and im still running strong. I will be using an r154 for sure with my 2j beyond 400whp.