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I will check that, thanks.

It's been a while since I posted, and for the sake of posterity, I should do so: I received and installed the new driveshafts complete with new U-joints. The 45 mph vibration seems to be completely gone. The guy at RM Driveshaft told me the cardboard dampers were still in place, which means...

Yes, I did.

Took my driveshafts into a shop today, they examined them and detected a host of problems. Worn splines, one welded slightly out of phase, one out of balance, etc. apparently, either the guys in Dallas seriously screwed me, or these guys are. Either way, I’m gonna shell out some bank.

I decided to skip step 1 (inspect mains) just to get her fired up and out of the middle of my driveway (which was as close as I could get the towing company to drop her). I capped off the oil level and installed the new oil line with orings. Fired her up. Oil pressure came up to normal and she...

I suspect/hope that line is the oil return from the governer? That would explain why it’s dumped directly into the side of the block, and why the truck was still running fine when I shut her down. It looks as tho it is fed from the front of the block next to the thermostat?

The truck still had about 2.5 gallons of oil in it. Makes me optimistic that it might have dodged a bullet. Found the leak, it was the oil line of death, as you guys speculated.

By 'residual issues' I mean that accessories, bolts and such were weakened/loosened beneath spec while the vibe was present, and thus still ready to fail even tho the offending vibration was removed from the scenario, albeit at a much later time. Those components are no longer torqued to spec...

OK, here's the plan: 1. Pull the oil pan and inspect the crank journals to determine if further work on the engine is even worthwhile. If journals fail inspection, search for replacement engine. 2. If journals are ok, replace oil pan, pour in some oil, crank engine with inhibit switch engaged to...

Awesomeness, when I first purchased this truck back in Feb, the water pump failed while driving to Dallas from Michigen. Before I made it to Dallas, the starter nose cone broke. Per your suggestion (thanks), I pulled the driveshafts and had them worked over by a quality shop. As I was leaving...

It seems as tho the air compressor is at the center of the soak area, tho I see no signs of failure. Likely a gasket?

1997 M1078, 3116 Driving home last night, oil pressure warning lights up on the dash. I pull over immediately. Truck idles fine for the second before I hit the switch and I thought it must be a sensor problem. Looked under the cab and the engine bay is covered with oil. Now I’m trying to...