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73-87 Chevy _ GMC Trucks => 4 Wheel Drives => Topic started by: jeremywallace on December 11, 2015, 06:35:25 am

Title: different drive shaft length
Post by: jeremywallace on December 11, 2015, 06:35:25 am

Just ran into something odd and looking for an answer.  I have a '84 K20 400thm 208 transfer with a standard size flat bedand tried to change rear drive shaft from 83 k20 with same drive line but 83 shaft is 2" shorter. 83 had a 8' fleet side bed. Any thoughts Why the difference?

Title: Re: different drive shaft length
Post by: Irish_Alley on December 11, 2015, 03:17:37 pm

is this a regular lwb truck with the bed removed or cab and chassis? single rear wheels or dual?

Title: Re: different drive shaft length
Post by: Fodder4U on December 11, 2015, 10:55:39 pm

Jeremy did the other truck also have a 400 turbo? 2" is about the difference between a 350 and 400 turbo in length.

Title: Re: different drive shaft length
Post by: jeremywallace on January 05, 2016, 11:36:12 am

Sorry for  taking so long to respond.  400thm in both.  And 84  option sticker says it came with a fleetside. It does have newer set of heavy springs with gm tags.