April 21, 2019 at 2:18 pm #534959
So I have a 1977 c10 with a 454 and TH400 transmission. Did a full engine and transmission removal. Did some engine modifications (removed cruise control/heater/AC) and when I put the transmission back on I installed a B&M Tork Master 2400 Torque Converter 10″ (https://www.jegs.com/i/B-M/130/20404/10002/-1) and new flexplate. Filled converter with 1 QT fluid. Installed new 3 core radiator with new lines and new cooler. Filled transmission with 9.5 quarts of Mobil 1 synthetic ATF.
First drive I backed the truck out the driveway in reverse. Drove about 1/2 mile down the road, truck seemed to be low on power. Got the truck back to my garage and now it wont go in any gear besides Park and Drive. But when it is in drive it is very low on power. I noticed what smelt like a burning clutch smell coming from engine. ( I replicated the smell again the next day while the truck was at idle so I know its not brakes) With the truck jack up I can put it in any gear (besides park) and the drivesaft with rotate forward and backwards acting like its in neutral. But if I start the truck I can get the wheels to spin so I know its not in neutral.
I rechecked fluid and level is good. Put a new vacuum module on it with new line just in case.
Do i have a faulty new torque converter or did my transmission tank itself somehow. (was working fine before I pulled it out)
I’ve done all the work on the truck myself but am out of ideas and starting to get a headache.
Thanks for your time
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