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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: builderick on February 05, 2010, 05:53:26 am

Title: need some swap help
Post by: builderick on February 05, 2010, 05:53:26 am

i have 78 chevy 3/4 ton lwb 4x4 350 engine turbo 400 transmission trans is going bad i have a 76 1/2 ton swb 350 engine turbo 350 transmission transfer cases look the same both cast iron  i know the shaft diameter is different lol ,the question is the difference in lenghth the t-400 set up is about 3 inches longer so are my driveshafts an issue to do this swap?

Title: Re: need some swap help
Post by: Captkaos on February 05, 2010, 08:14:03 am

Just by being a SWB vs LWB the driveshafts will be an issue, the Transfercase is just another variable.  SWB trucks are 14" shorter than a LWB.  You will need a different input shaft and a shorter driveshaft at the T-case.