Re: Twin Ultramatic Lifespan.

Posted by Tim Cole On 2022/10/13 8:46:30

Great care in doing the work is a necessity. I spent considerable time fitting bushings given shaft wear needs to be compensated for.

However, another consideration is the conditions of the nation's roadways. Rough roads are very hard on drivetrains. The computer controls in modern cars have programing that compensates for such. Otherwise, the check engine light would be setting misfire codes. When I drive in a state with good roads, I get significantly better mileage than here on Michigan's dilapidated, broken down, neglected, gas tax starved wagon trails. At work one of the guy's transmissions went before he needed his first brake job. No doubt from the strain of using broken down roads. And almost all of his commute was on the highway.