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Are you swapping the entire axle?

Did you rebuild the tractor valve?

I have found the parts tm sometimes has older or discontinued part numbers. At the end of the parts tm there is part number to nsn lists. You can search the nsn I usually use parttarget or webflis and come up with alternative part number and it will show if its a canceled nsn, and if so then it...

Rn31bc tractor valve repair kit

Finditparts had them

There are 3 diaphragms in the tractor valve. The rebuild kit had a bunch of stuff with them but it's usually just one of the 3 diaphragms that's bad. I will find the haldex kit number when I get to work tommorrow. I think it's posted in a thread somewhere though.

The tractor valve uses the same style diaphragms that the other checks do. If it's venting out the tractor valve when the brake pedal is pressed then the tractor valve needs new diaphragms. You don't have to rebuild the whole thing.

Do the dash front back park lights stay on when you release the brakes?

Yes the neutral start protection is different and the wtec 2 is a bit more forgiving than the 3. You have the wtec2 the trans computer is behind the keypad and there is a vim module behind the passenger kick panel with trans related relays.

Wtec3 has a small display window 1/2 inch by 3/4.

I would get a few of each to have on hand. You can use blade fuses in place of the breakers if need be. You have 12 volt relays switching 24 volt circuits and vice versa. Do you have single digit trans control display or double digit? Double is wtec 2 and single is 3.

Some can be empty depending on accessories. Standard bosch style automotive relays 12 & 24 volt.

Thats a first gen truck. They took the top off the start relay and tried to manually engage it.

You need the primer pump. It's a recirculating system you don't have to open a bleeder to prime. Push pump till hard crank and repeat if needed.

I had a non runner from Bragg dropped off today. Batts and a few pumps on the primer it started right up.

Nice truck. I have had good luck with the Bragg ones.