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gator2511 · 10-02-2005, 06:36 PM

Like I said above I have a 72 swb 4x4 with a stock chevy 350 crate engine, th400 tranny, gear vendors od and 3.73 gears. Its my only truck and my daily driver. I didn't help my mileage by changing to a th400 but I wanted the strength. I have not checked the highway mileage but after driving to the same hunting grounds with and without the od I can tell you the mileage is a LOT better. Cruising the interstate at 70 mph at 2100 rpm should be right where you want it. You have six gears so if you can't find the right rpm combo you never will. When pulling my 6200 lb. 25 foot trailer the tranny runs below 180 degrees. I have talked to a lot of people at the local car and truck shows and have never heard any complaints about the unit. GV was the way for me but maybe not for everybody.

10-02-2005, 06:36 PM	#12
gator2511 Registered User Join Date: Mar 2005 Location: tampa florida Posts: 776	Like I said above I have a 72 swb 4x4 with a stock chevy 350 crate engine, th400 tranny, gear vendors od and 3.73 gears. Its my only truck and my daily driver. I didn't help my mileage by changing to a th400 but I wanted the strength. I have not checked the highway mileage but after driving to the same hunting grounds with and without the od I can tell you the mileage is a LOT better. Cruising the interstate at 70 mph at 2100 rpm should be right where you want it. You have six gears so if you can't find the right rpm combo you never will. When pulling my 6200 lb. 25 foot trailer the tranny runs below 180 degrees. I have talked to a lot of people at the local car and truck shows and have never heard any complaints about the unit. GV was the way for me but maybe not for everybody. Last edited by gator2511; 10-02-2005 at 06:44 PM.