The GM automatic transmission has had few changes over the years. The output shafts have been 27, 29 & 32. The rear bolt pattern to the tailhousing or transfer case adapter is different on most applications and the bellhousing has remained the same for the most part, keeping the same dowel pin locations but changing a bolt hole here and there.
We do offer adapters to bolt the GM transmissions to the small block Ford blocks. 712588
The links below help to identify the transmissions.
- 1. GM TH350
- 2. GM TH400
- 3. GM 700R4 & 4L60
- 4. GM 4L60E
- 5. GM 4L80E
- 6. GM 6L80E & 6L90E
- 7. Allison 1000
- 8. GM 8L90 (M5U) Automatic
- 9. GM 10L80 Automatic
- Automatic Transmission cooler Lines/Location