3speed with overdrive stories - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**pjmoreland** · 10-23-2005, 09:01 PM

I suppose that's why they came with the inline 6 motors. I got power-hungry and traded mine for a TH350 and a V8.

PICKMUP · 10-23-2005, 09:25 PM

They came behind v8s also. There was a loaded 67 CST here with 327/3spd/OD. That was a great highway cruiser. I never got to check the rear ratio.
I am working on a 67 GMC 250/6 with complete original OD. It is running a 3:92 rear ratio in a dana 44. I haven't got to the OD yet, but it is not engaging. LivRat was down and gave me some ideas on items to check in the electronics. He also has some tips on putting this OD unit behind a 4spd.
I sold a complete unit on here a couple years ago. I wonder if it was ever installed and working?

10-23-2005, 09:01 PM	#1
pjmoreland Senior Member Join Date: Jan 2005 Location: CA Posts: 6,269	Re: 3speed with overdrive stories I suppose that's why they came with the inline 6 motors. I got power-hungry and traded mine for a TH350 and a V8.

10-23-2005, 09:25 PM	#2
PICKMUP "Trucks with Class" Join Date: Jul 2000 Location: OLYMPIA, WA, USA Posts: 8,168	Re: 3speed with overdrive stories They came behind v8s also. There was a loaded 67 CST here with 327/3spd/OD. That was a great highway cruiser. I never got to check the rear ratio. I am working on a 67 GMC 250/6 with complete original OD. It is running a 3:92 rear ratio in a dana 44. I haven't got to the OD yet, but it is not engaging. LivRat was down and gave me some ideas on items to check in the electronics. He also has some tips on putting this OD unit behind a 4spd. I sold a complete unit on here a couple years ago. I wonder if it was ever installed and working? Last edited by PICKMUP; 10-23-2005 at 09:26 PM.



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