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Old 02-14-2018, 12:43 AM   #1
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Join Date: Feb 2018
Location: Aurora Colorado
Posts: 1
Granny tranny

Just put a new 350 crate motor in my 72 shortbed c10.
Motor is pretty quick but it doesn’t like to go over about 55 mph without working too hard. Right now it’s has the stock 4 on the floor stock tranny with the granny first gear. Any suggestions on replacement tranny’s and vendors who sell them? Looking to keep it as a manual. Thanks
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Old 02-17-2018, 09:06 PM   #2
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Join Date: Aug 2004
Location: Centennial, CO
Posts: 2,527
Re: Granny tranny

NV4500 would be a good choice for a truck style trans with the compound 1st. A TKO would be good if you want a car-type ratio spread.
ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO
93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday...
05 Jeep Wrangler Unlimited. 3” lift & 6-speed
02 E320 the insurance total “free car”
13 Tahoe LTZ
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