V8/Power glide/ rearend ???? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

scottco · 11-25-2014, 01:15 PM

I want to keep my truck as close to original as possible but want it more highway friendly.
Will a sbc with a powerglide be a good combination with a 3.08 ratio instead of the 3.73. It's just a cruiser but not wanting to pull the two speed for an overdrive..... Thanks, Have a good Thanksgiving...

scottco · 11-25-2014, 02:03 PM

I think 3.73 to 3.08 would drop my 70 mph rpm by about 500...

**Palf70Step** · 11-25-2014, 04:22 PM

The 3.08 should help your highway cruising a lot, but you'll lose some low end umph. Powerglide should do just fine otherwise. I plan on getting my rear changed to a 3.08 also to make it a bit more highway friendly.

scottco · 11-25-2014, 04:57 PM

Thanks for the input.. Just didn't want to stress the glide to much..

**Palf70Step** · 11-25-2014, 06:55 PM

I have run powerglides "real hard" in my youth and they took being hooked to 283/307/327 without any issues. AT350 just gives you the extra in-between gear.

11-25-2014, 01:15 PM	#1
scottco Registered User Join Date: Aug 2002 Location: Texas Posts: 198	V8/Power glide/ rearend ???? I want to keep my truck as close to original as possible but want it more highway friendly. Will a sbc with a powerglide be a good combination with a 3.08 ratio instead of the 3.73. It's just a cruiser but not wanting to pull the two speed for an overdrive..... Thanks, Have a good Thanksgiving... __________________ 1964 C10 SWB original 1970 SS El Camino 1964 Impala SS http://67-72chevytrucks.com/vboard/s...d.php?t=649951

11-25-2014, 02:03 PM	#2
scottco Registered User Join Date: Aug 2002 Location: Texas Posts: 198	Re: V8/Power glide/ rearend ???? I think 3.73 to 3.08 would drop my 70 mph rpm by about 500... __________________ 1964 C10 SWB original 1970 SS El Camino 1964 Impala SS http://67-72chevytrucks.com/vboard/s...d.php?t=649951

11-25-2014, 04:22 PM	#3
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,225	Re: V8/Power glide/ rearend ???? The 3.08 should help your highway cruising a lot, but you'll lose some low end umph. Powerglide should do just fine otherwise. I plan on getting my rear changed to a 3.08 also to make it a bit more highway friendly. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!

11-25-2014, 04:57 PM	#4
scottco Registered User Join Date: Aug 2002 Location: Texas Posts: 198	Re: V8/Power glide/ rearend ???? Thanks for the input.. Just didn't want to stress the glide to much.. __________________ 1964 C10 SWB original 1970 SS El Camino 1964 Impala SS http://67-72chevytrucks.com/vboard/s...d.php?t=649951

11-25-2014, 06:55 PM	#5
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,225	Re: V8/Power glide/ rearend ???? I have run powerglides "real hard" in my youth and they took being hooked to 283/307/327 without any issues. AT350 just gives you the extra in-between gear. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!

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