th 350 to th 400 swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gregg72340 · 11-21-2010, 01:34 AM

Hi guys just a thought since my 2wd th350 is blown and I cant seem to find a decent used one cheap, what is involved with switching to a TH 400? I know that the driveshaft would be different, I currently have a one piece but have heard that if I do this swap I can use a driveshaft from a 3 speed truck and it would be a bolt in, has anyone else ever heard that one?

Also can anyone think of any other issues I may run into with doin this swap other than moving the crossmember?

Thanks

11-21-2010, 01:34 AM	#1
gregg72340 Registered User Join Date: May 2010 Location: ambler, pa Posts: 325	th 350 to th 400 swap Hi guys just a thought since my 2wd th350 is blown and I cant seem to find a decent used one cheap, what is involved with switching to a TH 400? I know that the driveshaft would be different, I currently have a one piece but have heard that if I do this swap I can use a driveshaft from a 3 speed truck and it would be a bolt in, has anyone else ever heard that one? Also can anyone think of any other issues I may run into with doin this swap other than moving the crossmember? Thanks __________________ Just would like the snow to stop so I can actually work on my truck!!!!!!!!!!!



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