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Re: [GMCnet] Power Drive [message #327204 is a reply to message #327191] Sun, 17 December 2017 09:52 Go to previous messageGo to previous message
Ken Henderson is currently offline  Ken Henderson   United States
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma:
Senior Member
Vadim,

After having a GMC for 19 years, variously equipped with standard, Power
Drive, and higher ratio final drives; and having talked to and listened
here to literally hundreds of other GMCers, including every expert in the
community, I have an opinion. That opinion is that the Power Drive+3.21 is
as close to the ideal drive train as one can get for the GMC. Yes, the
Power Drive DOES increase the torque load on the TH-425, which can easily
withstand the increase; I'd have no qualms about using it with my Cad500.

Keep it as it is unless you just want to experiment with others -- but
don't let go of the pieces, 'cause you'll probably want to go back.

Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI & EBL,
Manny Brakes & 1-Ton, Troy-Bilt APU, etc., etc., etc.
www.gmcwipersetc.com

On Sat, Dec 16, 2017 at 11:21 PM, Vadim Jitkov
wrote:

> Hello Everyone,
> I'm a new member here on the forum, looking for some information. I'm a
> relatively recent owner of a beautiful 26' 1976 GMC Glenbrook. It is still
> pretty new to us and we are in the process of learning all its little
> quirks and peculiarities.
>
> The coach has a 455 Olds and transmission with the PowerDrive unit. When I
> first learned about the PowerDrive, I thought it was a modification of some
> ​...
>
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
 
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