- 22
- 0
In the process of buying a 1989 F-250 which currently has the 300 "I" 6 EFI gasser. Found a cheap 7.3 turbo diesel from a 1995 F-350. The F-250 has a 4 speed trans with "D" (Overdrive/5th?). With this trans behind the 7.3 (Will be eventually built to 100's more hp!) Will it still have a good towing capacity?