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| | | | Joined: Nov 2010 Posts: 114 'Bolter | | 'Bolter Joined: Nov 2010 Posts: 114 | I've installed T5 in my 42 3/4 ton Chevy (running a 1962 235 6 cyl). While this is a major improvement over the OE Muncie 4 speed, it still leaves some things to be desired. The 3/4 ton's stock 4.55 R&P set makes 1st gear pretty useless although, the truck is far better at highway speeds. I'd like to swap out the R&P set to something closer to 3.90 or 4.10, in order to take care of the low speed acceleration. Can anyone tell me if they've done this in an Art Deco 3/4 ton? I did read the tech article about the 1955-62 pumpkin swap but, why change the whole pumpkin & mod the driveshaft just to swap the R&P ratio? If a replacement gear set in the 3.90 or 4.10 ratio is available for the 41-46 3/4 ton, I'd sure like to know about where to get a set. Thanks for any help or sources you have.
Ghost Rider
Little Egg Harbor, NJ
1942 Chevy 3/4 ton pickup, 1962 235, Offy intake, Fenton headers, Dual Carter YFs, 1984 T5
1956 Chevy 3100 Apache, 67 350SBC, Saginaw 4 speed, 69 12 bolt
| | | | | Joined: Feb 2004 Posts: 29,867 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,867 | Running a T-5 in a 3/4 ton defeats the purpose of having a truck, so you might as well install some type of passenger car rear axle, also. High ratio gears for your stock rear end don't exist.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
| | | | | Joined: Nov 2010 Posts: 114 'Bolter | | 'Bolter Joined: Nov 2010 Posts: 114 | I have all of the OE driveline on the shelf. I just got tired of being limited to 45 mph. BTW, the T5 came out of an S10, and it serves my purposes quite well. I'm not pulling stumps anyway.
Ghost Rider
Little Egg Harbor, NJ
1942 Chevy 3/4 ton pickup, 1962 235, Offy intake, Fenton headers, Dual Carter YFs, 1984 T5
1956 Chevy 3100 Apache, 67 350SBC, Saginaw 4 speed, 69 12 bolt
| | | | | Joined: Jan 2000 Posts: 2,074 'Bolter | | 'Bolter Joined: Jan 2000 Posts: 2,074 | Found a 4:11 ratio pumpkin from late 60s that dropped right into my 53 3600, not sure if same holds true for your 42. Late 60s 3/4 tons with automatic trans came with the 4:11s.
Best of luck | | |
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