The CH-2 Air boat Reduction Drive Units are designed for V6, V8, and small block GM and Chevrolet engines.
CH-2 models are used on 12' to 17' air boats.
The belts for CH-2 models are 4" wide and can use HPPD Plus or Black hawk belts which are rated 60% stronger than the Standard HPPD Plus style.
The drive units carry a 100 hour factory warranty.
The ratios for a CH-2 drive unit are:
1.774 to 1, 2 to 1