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Transmissions and Rear Ends Three on the tree or four in the floor? Shift it all here.

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Old May 23rd, 2016, 01:11 AM
Jduckett Jduckett is offline
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Default 64 GMC swb transmission

Hey guys

I'm wanting to swap my 3speed transmission 64 GMC swb to a 3 speed synchro transmission. Can anyone give advice and part# and model of a suitable transmission. Would a SM326 work and be a direct bolt in. Thank in advance for any advice.

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Old May 23rd, 2016, 06:01 AM
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Default Re: 64 GMC swb transmission

Tech tip right here in River City.

I believe the Synchro 326 is a bolt in for a non Synchro 318. May need slip yoke change (spline count), and possible: linkage, speedo cable, and speedo gear modification. BW OD available for those. Hens teeth.

Last edited by AZKen; May 23rd, 2016 at 06:27 AM.
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