Rear axle rebuild

I found a good article in the PCNC Newsletters
July 2009 page 8. it only gives the range of 275 to 400 ft-lbs.

I would think a light coating of grease (or anti-siez) would aid in future disassembly.

during torquing I would be looking for the transition in torque applied when the two inner diameter races clamp down on the spacer, being sure the deformation caused by the locking nut does not give a false "click out" on the torque

I did mine last year, I went with the wider inner bearing sold by the vendors. But I used a small torque wrench and put 100 ft lbs on the nut, marked the nut and upright. Then I used a large torque wrench and put 400 ft lbs on the nut. I went up in steps and made corresponding marks on the upright to gauge the amount of movement for each progression. I am glad I did this because when I did the left hand thread the torque wrench I was using would not "click" in the counter clockwise direction. So I just applied the same amount of turn to get the torque I needed.
Jeff

quote:

I am glad I did this because when I did the left hand thread the torque wrench I was using would not "click" in the counter clockwise direction

If your 400lb torque wrench is like mine, you simply remove the two screws and the flip the center section 180 and now it will click in reverse. Make sure to flip it back for future operations.

FWIW, I searched a few years ago on E-Bay and found a 0-1000 ft-lb Snap-On torque wrench that sold for $150 delivered. The thing is 4 ft long but the handle comes off for shipping & storage. Weighs 10 lbs. It's a 1" square drive for which there are adapters, and it has a dial indicator with a triple-A battery built in that lights up an indicator when you reach a preset torque. You're quite a ways away from the dial on the end of that handle! Snap-On still sells these things new (for $600) but I guess the market is pretty restricted. Only other time I ever used such a monster was in Aerospace, torquing giant bolts on a rocket motor. If you do many Pantera stub-axles or a very few other high-torque fasteners, the price was right- maybe for a club-buy?

Harbor Freight sell a 3/4 inch torque wrench for 80 bucks with a lifetime warranty. It is advertized 0-300 lbs but since it is a spring tension device, it isn't hard to set it to 350.

The biggest complaint folks have regarding these torque wrenches is they think it is broken because it won't click in the reverse direction. If they would read the instructions, it says to flip the center section 180 and then it works in reverse. It take about 30 seconds to do the flip after loosening 2 screws.

This tools makes doing the axles a simple and easy task.

If you have a reasonable good fishscale, it's easy to do the math and use a tube for extension. "Calibrate" your fishscale with a known weight, near your needed force.
A torquewrench should also be calibrated, they are sometimes way off.
Like this:

quote:

Originally posted by dvil:
If you have a reasonable good fishscale, it's easy to do the math and use a tube for extension. "Calibrate" your fishscale with a known weight, near your needed force.
A torquewrench should also be calibrated, they are sometimes way off.
Like this:

Hey there dvil, where did that rear upright in the picture come from? Please tell us more about it.

Best,
K

quote:

Originally posted by Panterror:
Hey there dvil, where did that rear upright in the picture come from? Please tell us more about it.

Hey Panterror,
Really sharp Pantera you have there. Wish I had your engine! Well the whole.
It's from my '85 Deauville. Did some service on the rear end. Picture of the garagequeen here:
Deauville

quote:

Originally posted by dvil:Hey Panterror,Really sharp Pantera you have there. Wish I had your engine! Well the whole. It's from my '85 Deauville. Did some service on the rear end. Picture of the garagequeen here:
Deauville

Thanks dvil. That's a nice looking Deauville, I haven’t seen such an upright before. Are they shared with any other car, DeTomaso or otherwise? Happen to have any other pictures of the upright showing all the features? They appear to be alloy/aluminum. Are they? Or just freshly cleaned steel? Sorry, so many questions.

Best,
K

quote:

Originally posted by Panterror:
.., I haven’t seen such an upright before. Are they shared with any other car, DeTomaso or otherwise? Happen to have any other pictures of the upright showing all the features? They appear to be alloy/aluminum. Are they? Or just freshly cleaned steel? Sorry, so many questions.

As not to hijack this thread even more; please see my (not so updated) homepage. The Longchamp and also a couple Maseratis share those alu-uprights (from the era when DeTomaso owned Maser). Espen's homepage
For further discussion re this, please send me a private msg, or start a new thread. The email written on my homepage is wrong, and I don't remember how to update.