The TH350 is the lighter-duty muscle car 3-speed - faster shift bench time than a TH400, smaller package, fits in tighter engine bays. Pre-electronics simplicity. Restoration market is steady.
Years
1969-1986
Maker
GM
Ship Time
Same-day before 2pm ET
Common TH350 Failures
| Symptom | Most Likely Fix |
|---|---|
| Slips in 1st | direct clutch pack |
| No 2nd gear | intermediate clutch pack |
| No 3rd | high-reverse clutch |
| TV cable issues | cable + bracket replacement |
| Pump cavitation | pump bushing + seal |
TH350 rebuilds are quick bench (~4 hours) and parts are everywhere. Good revenue at $1,000-$1,800 retail.