Description
TH400 Level 1 – “TH400 Stock Plus”
This transmission comes with a mild shift kit and a heavy duty torque converter with TIG welded fins.
(We’ve tested 400 transmissions against 350 transmissions and the 400 transmissions were faster.)
| 400 Transmissions | Level 1 – Stock | Level 2 – 400 Terminator | Level 3 – 400 Raptor |
| Torque Converter | Stock | #7 | No – You Pick |
| Stall Speeds | 1800 | 1800, 2000, 2600 | No |
| Free Freight | No | No | No |
| Speedometer Gears | Extra | Extra | Extra |
| Fairbanks TransAction Kit | No | Yes | Yes |
| Alto Black Front Band | No | Yes | Yes, Wide |
| 34 Element Sprag and Drum | No | Yes | Yes |
| Core Charge | Yes | Yes | Yes |
| Tail Housing | 4 or 9 Inch | 4 or 9 Inch | 4 or 9 Inch |
| 4 Clutch Intermediate Brown Power Pack | No | Yes | No |
| Alto Kolene Steels and Red Eagle Power Packs in all 3 Clutch Sets | No | No | Yes |
| Heavy-Duty forward drum and hard Input Shaft with oversize splines | No | No | Yes |
| Hard Forward Clutch Hub | No | No | Yes |
| 2WD Price shown, add $100.00 on 4WD case and $149.00 on some 4WD output shafts. | Chevy $ | $ | $ plus converter |
| Transmission Horse Power Rating | 400 (with #7 converter) | 800 (with #6X – 400 converter) | 1200 |
| Upgrades | Cast Aluminum Pan, Powder Coating, Alto Red Eagle Power Packs, 4WD Case, Gear Venders 22% Overdrive | ||
| Comments | When ordering a 4WD TH400 transmission we need to know how far the output shaft sticks out past the case. If you have a 454 motor the #7 torque converter that comes with the level 2 TH400 will require a dual bolt pattern flywheel. | ||
