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Consensus here seems to be the TCMs are basically interchangeable over the years. They have different flashes based on GVW of the truck they are intended for. Pin out is the same. You said you could find TCMs in a junk yard, since there are no HMMWV junk yards, I assumed you meant commercial...

Welcome, Nobody that I am aware of has made a homemade adapter for the TCM. The TCM was only used in 1 year (I recall 1993) GM vehicles with 6.2 diesel and 4L80E, so finding this in a junkyard will be a challenge. Quite a few folks on here are parting out auction trucks, suggest you run a...

I plan on telling the wife that you can get a mowing deck for it so I won’t have to buy a new John Deere tractor which is very expensive.

I’m guessing Uncle didn’t replace the core, they supplied an entire new radiator. However on the commercial side, cores are replaced all the time. Suggest you contact a radiator shop that specializes in huge industrial radiators.

That same rim is used on every 3/4 ton pickup truck ever made in the US. What a load of crap you were told.

Sounds awful. Rod knock is what I hear.

Is it missing AND knocking or only knocking? A thermal gun pointed at the exhaust manifold can help you determine if a cylinder is not contributing. Is the alternator firmly attached? They have a tendency to break bolts and then rattle.

Some data points: Once you work the bugs out of them, 880s are awesome capable trucks. Mine has carried 2 yards of crushed concrete, pulled around a D3 dozer on a 3 axle trailer, transported nearly anything imaginable all over the state of Texas for me a 70 mph. Plan on 8-10 mpg. What...

Those are some old used Michelin 16” tires off something else. Not worth much. Value of truck now about $700

On mine I had to put a fuel filter before the mechanical pump due to trash from the tank getting stuck in the pump valves, ruining the pumps over and over.

If you leave them both alone in a garage at night in 9 months you might get a Mighty-Mite.

Not sure what brand tires he put on it, but Firestone Transforce are $208 ea and crappy Power Kings are $163, so quite a bit of value there for 4 tires including tax and balancing etc. I have Transforce on mine, a good highway only tire.

Porkys has a very good point, the fuel pickup is plain steel and can get very rusty. M884 with new tires is worth $1500.

1976 called, wants their trucks back.

Ok found the listing. Sure nuf that is the generator configuration.

Can’t find listing.

Page 122 for error 85 and 86 discusses the TISS and TOSS sensors providing inputs to the brain that the brain is not expecting, leading to brain going to limp mode. Checking these sensors is where I would start.

Are you working with Supplement 7 on the 4L80E?

I believe the reason these hubs are working out so well is that previously the Cat spent all its time at redline against the governor whereas the torque peak is half that.

Uncle has been selling the early models for some time now. The ones that have sold are the birds you see on the SWAT tv show and various Youtube channels.