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slorio · 11-18-2008, 12:31 PM

Here's a good write up on 3 to 4 speed conversions. It is for an SM 420, but should be similar for the SM 465. It is from Jolly's GMC website:

http://www.6066gmcguy.org/3-to-4-speed.htm

I hope this is helpful.
Regards,
Steve
New Orleans

11-18-2008, 12:31 PM	#4
slorio Registered User Join Date: Sep 2006 Location: Louisiana Posts: 375	Re: 66 gmc c10 transmission swap to sm465 Here's a good write up on 3 to 4 speed conversions. It is for an SM 420, but should be similar for the SM 465. It is from Jolly's GMC website: http://www.6066gmcguy.org/3-to-4-speed.htm I hope this is helpful. Regards, Steve New Orleans