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1991 8v93ta drive axle bolt and nut - Printable Version

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+--- Thread: 1991 8v93ta drive axle bolt and nut (/showthread.php?tid=8227)


1991 8v93ta drive axle bolt and nut - Dystrakti0n - 10-28-2024

Does anyone happen to have a part # for the drive axle bolt and nut? I make the genius decision to run up a 6 mile 6% grade just east of Butte, MT, without enough fuel in the main, and the aux closed off. Starved the engine of fuel since it all ran to the back of the tank.  We did get that resolved by priming the secondary fuel filter inlet, after a few tries. 

After a very long night on the shoulder of I90, 1.2 miles from Homestake Westbound Park area, StateFarm finally got a heavy wrecker out to pull me up the hill to flat ground. He pulled the drive axle from the differential, and in so doing buggered up one of the bolts and nuts. Now I am leaking fluid and he has yet to source a replacement.  

A) I don't think I should drive on this after reading differential fluid nightmares, so we are stuck.  

B) I am assuming if I knock out this bolt to take it into an auto shop to match it, I'm going to be dumping a lot of oil in the interim. 

So, does anyone have the part number off hand? 

Thanks, ~ Marcus.

RE: 1991 8v93ta drive axle bolt and nut - cwl1979 - 10-28-2024

Any truck repair shop should have it on the shelf. Its threaded on both sides one is very course and the outside is fine. other things i see wrong with your post are... they should not have pulled the axle and should have pulled the driveline. when the axle goes back into the housing it needs a new gasket or its going to be a mess. once the axle has been removed you will need to replace the lost fluid. that will require getting under your coach and filling it with quart bottles until full. each outer hub should hold close to 1 qt to keep the bearings lubed. If you can pull the one that's buggered up it really shouldn't leak much while you hunt one down. Oh and most of the "crush washers are on upside down.

RE: 1991 8v93ta drive axle bolt and nut - Jack Houpe - 10-29-2024

Its all been done but so no turning back but Carl is right about gasket and oil, that needs to be taken care of soon. I think I would have paid someone to bring me 50 gallons of fuel?

RE: 1991 8v93ta drive axle bolt and nut - Little - 10-29-2024

You may be able to chase those threads as damage is usually worst on the end. Your threads appear useable farther in. Also most of these Ive seen are standard course thread in the hub so a 1/2" bolt should work if proper studs are not available. Silicone gasket maker will work in lieu of proper gasket. Surfaces need to be clean for sure. (old gasket completely removed)

RE: 1991 8v93ta drive axle bolt and nut - Dystrakti0n - 10-29-2024

The wrecker came back and chased the threads, and it got us down the mountain pass last night.

I called for fuel, and they showed up with 10 gal, for $60, told them to go fish, I had already unloaded the GL, bought two 5 gal cans, and made two trips. 20 gal of fuel for 50. Statefarm roadside ftw.

50 gal would have done me no good. I don't have any way to prime without disconnecting the secondary and forcing fuel in, and all my tools for that were locked in the bay against the barrier so I couldn't get to any of them. Plus. It's not something I would want to do 12" from the white line on I90, w/ people flying by at 70 mph. I used to get shot at for a living doing maintenance retrieval on c130s in Iraq and Afghanistan. I'm good on risking my life while busting knuckles.

I will get the gasket replaced today, and replace all the missing fluids.

Thank you all for the experience and advice.