Thegrampatrk
New member
- Joined
- Jan 23, 2011
- Messages
- 232
So finaly after 6 mo. My 93 d250 is running but its a dog some looking proved I have 4.11 gears! my question is if I go to 3.08 I gain alot in mph and rpm range but will I loose all my take of the truck has a 518 od and some power mods hx40 super and pump mods