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weim55 · 10-13-2019, 02:26 PM

Having done many of these various mix and match vehicle-engine-trans-gear swaps here's what I would do given the facts you put on the table. Keep it simple and have the rear gear swapped to a 3.07 by a shop that specializes in such. I've done the 3.73 to 3.07 change more than a couple times. In a V8 application such as yours that 307 will have plenty of power to cruise that gear on the highway. With the RPMs lower @ 65mph the truck will be MUCH quieter at easier to live with. And your all original truck stays that way, simple and reliable......

Steve weim55 Colorado

10-13-2019, 02:26 PM	#22
weim55 Registered User Join Date: Jan 2017 Location: Larkspur, Colorado Posts: 908	Re: Engine vs Trans vs gearing Having done many of these various mix and match vehicle-engine-trans-gear swaps here's what I would do given the facts you put on the table. Keep it simple and have the rear gear swapped to a 3.07 by a shop that specializes in such. I've done the 3.73 to 3.07 change more than a couple times. In a V8 application such as yours that 307 will have plenty of power to cruise that gear on the highway. With the RPMs lower @ 65mph the truck will be MUCH quieter at easier to live with. And your all original truck stays that way, simple and reliable...... Steve weim55 Colorado