Transfer Case Drive Gear

I need to torque the transfer case drive gear after mating my T90 to my D18. Service manual calls for 130 to 170 lb-ft. Where should I hold (without destroying anything) to torque that nut to such high value?
Thanks!

 

I wouldn’t be too concerned about damage, as long as you don’t mar any critical surfaces with clamping pressure. You won’t apply forces anywhere near what it’ll see in everyday use.

 

If you've got the top cover off the transmission, you can put it into two gears at once to keep it from turning.

 

I meant to hold it so it would not spin when I torque it. I have to transmission cover installed, but I guess I could remove it and lock it there. Any other alternative?

 

You could try a large pipe wrench on the rear output flange with the transfer case in High. Or even bolt a large bar or 2x4 to it using the flange bolt holes.

 

Ok, I will use my yoke tool on the TC, then. That sounds better. Thanks a lot!

 

believe it or not
I just stuff a rag in between gears

 

It would never occur to me to do that, but thinking about it... of course that will work. Clever, I like it!

 

That’s a motorcycle axle adjuster trick.

 

Enough to hold over 130 foot pound?

 

and a few other things . used to change gears on big production machines

Enough to hold over 130 foot pound?
yes just ball/roll rag up before getting it stuck in gears . and you have to turn things backwards to remove rag

 

I've used a thick piece of canvas stuffed into the gear mesh many times to break this nut loose or tighten it, basically the same idea that Ron suggested.
That case looks like it cleaned up nice!
-Donny

 

Thanks, Donny!

 

I cant beleve it needs that torgue. It just has to hold the gear in place. The gear it self is on a spline shaft.

 

I know! And on top of that it has a cotter pin. Maybe it helps to reduce backlash on the TC?

 

I did put the transmission in two gears the same time so that locked the transfer shaft. I just torqued it normal. I locked the thread with a punch. so it wont get loose. Holds for a year now. Just checked it last month. I dont have a cotter pin???

It does not affect the back lash

 

Mine does...