Posts: 1
Joined: 7/9/2004 From: United States Status: offline
This message is for a mechanic. I have a 90 Dodge Ram D150. It has a 318 FI engine. Has an automatic transmission.
I was debating about installing an Overdrive transmission in this truck to improve mileage. Currently it gets about 11mph.
Will this help the mileage or not?