Thread: 1960 Gmc 305 v6
View Single Post
  #7  
Old July 29th, 2021, 11:05 PM
ZDADDY ZDADDY is offline
Banned
 
Join Date: Jul 2021
Location: Springfield, MO
Truck: 1960 gmc truck
Posts: 17
Rep Power: 0
ZDADDY is on a distinguished road
Default Re: 1960 Gmc 305 v6

Quote:
Originally Posted by jbgroby View Post
Welcome to the Wonderful World of V-6's PLEASE CHECK AND ENJOY THIS LINK, it has every single thing you'll ever want oe need to know about our trucks. It was created by Jolly Goodfellow.

http://6066gmcguy.com/


I have a 1/2 ton GMC V-6 with a factory rear differential DANA 44 and that originally had a stock 3.92 ring and pinion. I swapped it down to a 3.23 from Precision Gear, that helped a lot but I had no overdrive, so I stayed on the low roads.....

I recently swapped out my worn out 4 Speed hydramatic to a 700R4 - if you consider that you'll need the factory or aftermarket trans adaptor to mate up an automatic. Once I made the swap and the truck had OD, I can cruise at 70+ and only turn 1500-1900. I tested at 80 mph and was only turning 1750-1800. See screen shot

Finding parts will sometimes be a quest but they are out there, reach out to both Kanter and EGGE Auto.
Jbgroby,

That's exactly what I want!!!!!! Low rpms going 70/80...........How does that work with a manual 4speed? I would like to keep the floor shifter......is that doable or to much a pain in the ***?
Got any more pics? I need inspiration. Do you have to change tranny and rear end? What trannies bolt up to the v6?

Thanks for the reply
Zdaddy

Sent from my P027 using Tapatalk
Reply With Quote