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- - 3sp to m420 conversion (https://67-72chevytrucks.com/vboard/showthread.php?t=771566)

3sp to m420 conversion

So I've been using my old 66 for 20yrs hauling whatever I could get in the bed...from 30+ bales of hay, 20 railroad timbers, to a ton plus of creek gravel. I've now messed up a second 3sp. I could repair but was thinking of converting to an AS BUILT 4sp. Its my understanding I would need a tranny and the floor and firewall humps, maybe a floor shift column to keep it looking factory. This truck is stock/ original front to back the 283 has never been out of the frame. The truck has received regular service.

Anyone have a parts truck near TN?

Thanks for looking. Glen

Re: 3sp to m420 conversion

DPowers is in Tennessee. I'll bet he can help you.

Re: 3sp to m420 conversion

Is that his user name?

Re: 3sp to m420 conversion

Thanks Rolland. Mr Big I returned your PM.

Re: 3sp to m420 conversion

Yes, Thanks Roland for the tip.