The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 83 manual 4speed w/od??? worth looking at???

Kopper · 09-16-2005, 04:13 PM

I have one in my 81 pickup, it came as original equipment in GM's fuel economy package, ESC 305, 4spd OD, and 2.56 rear gear. I swapped my gears for 3.08 and have plans to go with 3.73's. I've also heard that the same trans was available behind the 454's in a pickup, but I can't confirm this. It's a good trans in my opinion, they mated them to a 12" clutch. GM referred to the trans as a MY6. The OD is .73. I have an old road test from a magazine from back in 1981, if there aren't any copyright issues I can scan and post it.

09-16-2005, 04:13 PM	#5
Kopper Registered User Join Date: Oct 2002 Location: Ontario, canada Posts: 138	I have one in my 81 pickup, it came as original equipment in GM's fuel economy package, ESC 305, 4spd OD, and 2.56 rear gear. I swapped my gears for 3.08 and have plans to go with 3.73's. I've also heard that the same trans was available behind the 454's in a pickup, but I can't confirm this. It's a good trans in my opinion, they mated them to a 12" clutch. GM referred to the trans as a MY6. The OD is .73. I have an old road test from a magazine from back in 1981, if there aren't any copyright issues I can scan and post it.