you have to keep the existing trans with the enclosed driveshaft. also, with an updated motor/trans, why not change to later model open driveline or swap to something made within the last 30 years.

without changing the rear, the motor change wouldnt make sense. If you just want higher road speeds, swap to a different ring and pinion from Patricks

The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me