Damnit...I killed something :(

[botboy]

Hi guys. Took my truck on a short roadtrip with my GF, julie to get a friends car that he bought off ebay.

Did a bunch of prep work to get the truck in shape to go down there...new plugs, oil, oil filter, tranny filter/gasket, synthetic ATF, synthetic gear lube in the rear, greased the zerts, etc.

Truck is a '72 C10, 350, TH350, 3.07 rear gears....had a small aluminum trailer to get the small subaru from iowa. Coming back from picking up the subaru the truck started bogging (or so it seemed) in 3rd, so I ended up doing about 150 miles from iowa to my home in 2nd at higher rpm's just to keep 50 MPH up. Without trailer, truck still seems to bog in 3rd, won't do above about 53 with my foot to the floor, and I know its not bogging. Unloaded, truck does 65 easy in 2nd gear but won't exceed ~53. Tranny fluid smells burnt (and damnit is mobil1 ATF Expensive!)

So what did I kill? I'm planning on dropping a manual in the truck (was planning on it anyway but this accelerated the timeframe for it) and since I'm going to sell the TH350 I want to be able to tell the buyer what exactly needs to be replaced.

Anybody want a TH350 core in the midwest?