Can you identify a weak output without dissasembly?

[Mace]

Since I have my truck mostly torn down right now I wanted to make sure that the rear output is not twisting. I pulled the flange and the seal. From where I can see there is no visible distortion on the output, but I am wondering if I would be able to see any distortion without pulling the rear section of the case off. Or if I should just bite the bullet and pull the rear portion of the case (I really don't want to do that) ?


The reason I do not want to pull the case completely apart is because I would have to pull the rear links to do that..

 

[2ndGenToyotaFan]

What truck are we talking about? Or what tranny/transfer case?

Take a look here if you have a gear driven case:

http://www.marlincrawler.com/htm/transfercase/470install/installation.htm

Pretty easy to take the rear cover off and take a look.

 

[Mace]

The reason I do not want to pull the case completely apart is because I would have to pull the rear links to do that..

4 cylinder, gear driven case

The truck won't help you.

 

[CJF]

The truck won't help you.

What; it's a frickin' secret??

 

[2ndGenToyotaFan]

Sorry Mace, that part didn't make it through all the fluid and into my brain.....

You could check the runout with a dial indicator, although I don't know if there are #'s for checking it that way. Putting the t-case in N may make it easier... And of course if it's loose at all, that's bad. I had a siezed rear drive shaft bend my output shaft after going over a bad bump. It leaked pretty bad after that, and the output shaft was somewhere near 40 thousands out if I remember right.

 

[Mace]

What; it's a frickin' secret??

Okay, 1978 Toyota Land Cruiser FJ40.



I guess I'll just put the flange back on and check runout. Hopefully the flange is nice and round

 

[2ndGenToyotaFan]

I would guess that if there's no play in the bearings, EI no wiggles, and it's not leaking, it's probably good to go.

A friend of mine who's been a mechanic for 30+ years took apart one of my dads 84 pickup t-cases with 250k miles on it, said it looked brand new! When they aren't used under extreme conditions the t-cases are dang near bullet proof.

 

[Mace]

That is the thing, it is used under extreme conditions

 

[Mace]

Mild example.

 

[2ndGenToyotaFan]

I don't see the problem.....

What engine are you running in that beast?

 

[Mace]

Turbocharged 2F (stock six cylinder) on propane.

 

[2ndGenToyotaFan]

I know what a 2F is! Is the power better with the LPG? Or do you just like running while on your roof? Hehe

Have you checked your run out yet?

 

[Mace]

pane has an effective octane of 104. = lots of boost potential

Mostly it was to run on the roof. Much cheaper and less complicated than fuel injection.


Nope, need an output seal..