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Old November 26th, 2021, 02:02 AM
Chuck78 Chuck78 is offline
Join Date: Jul 2014
Location: Columbus OH
Truck: 1962 GMC 1000 panel truck
Age: 43
Posts: 83
Rep Power: 67
Chuck78 is on a distinguished road
Default Re: Speed Gems trans adapters V-12 and V-6

Whatever became of this adapter, & what were the applications the adapters would mate to? There are other adapters that work with these V6 engines as long as you use the GMC V6 bell housing, as the transmission side is identical to a ton of other GM manual transmissions. For automatic, not as much available to my knowledge at least, but I've been out of the loop on these trucks for a while. A 6L80 adapter and stand alone transmission ECU would be nice for someone wanting an automatic. Neither of my arms or legs are broken so I'm good driving manual indefinitely!

I was looking at running a two-wheel drive Jeep AMC/Mopar 4.0L I-6 / Dodge Dakota V6 Magnum 2wd AX-15 5-speed manual transmission behind mine whenever I swap the 305D for this 351C...
If I could find a GM NV4500, I would consider just running that instead since it would very likely just bolt directly to the bellhousing.
Chuck in Ohio
*'62 GMC 1000 Panel Truck - 305D/Saginaw 4sp soon: 351C V6 + AX15 5sp OD trans, & 73-87/91 disc brake front end, rear Cadillac calipers/ AWD Astro rotors, Dana 44 redrilled to 5 lug
*'88 Suzuki Samurai 4x4 project, VW 1.9L mTDI turbodiesel, Toyota V6 LandCruiser drivetrain, full floater axles, future LWB bed stretch
*'77-'79 Suzuki GS motorcycles, '76 Rickman CR900 roadracer.
*Dirtbikes: 2 Kawasaki KDX220R's, '77 Suzuki PE250, '83 PE175
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