1986 K10, 350 w/700r4 transmission.
Took my K10 out on the sand yesterday for the first time. After 30-40 minutes of driving,, it had no power. The way I would describe it is that it was "chugging". I was in 4H and had the transmission in D2. With the gas pedal to the floor, the motor would not rev and the tires would not spin. It would just bog WAY down.
Back to the asphalt, back to 2WD, hubs unlocked. In neutral, the motor sounded normal, would rev up without any issues. Put the truck in D and it would have what I call "normal" from a stop. After it shifted up into 3rd gear, it would not kick down into 2nd when pressing the gas pedal to the floor. On the drive home, it did one time for a few seconds and then shifted back up to 3rd. If I put it in OD, it would have a noticeable vibration but would kick down into 3rd when accelerating. and back to OD when letting off the gas. Truck did not have much power at all on the pavement after driving it for a few minutes. It has never been a power house since I have owned it, but what I was experiencing yesterday was not normal. Transmission fluid was red and not burnt smelling. No leaks, nothing was visibly burning (transmission not smoking, motor not smoking, etc)
Motor is stock, has Thorley headers, stock carb, stock intake, 33/1250/15 BF Goodrich AT.
Got home late last night so I have not done anything.
Recommendations on where to start looking for the culprit? My "logic" says I over did it with a stock 700r4 and 33" tires on sand, but I would rather get some input from experienced minds that can point me in the right direction for a fix.
Thanks. Chris
1
