Author Topic: front driveshaft  (Read 3541 times)

Offline GMCTed

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front driveshaft
« on: August 31, 2006, 11:48:00 pm »
hello everyone,  i have a 1985 gmc 3/4 ton 4x4 with a sm465 4speed and a 208 transfer case that i just put a 14bolt ff  and a dana 60 in and the stock front driveshaft is a little too long to fit the 60. i wanted to ask if the stock shaft can be modified to fit or will i have to have a new one made up? i`m selling the truck and i told the guy that wants to buy it that i would get a shaft in there before he buys it. i just dont want to put much money into a truck i`m selling  thanks for any help with this.                  

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Offline 79ChevyK20Guy

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Re: front driveshaft
« Reply #1 on: September 01, 2006, 01:56:00 am »
You should be able to take it to a machine shop and have it shortened. Not sure on prices could probably be done under 100 bucks.

Brian Skaggs
"Sometimes you just gotta say WTH?"

Offline cracker0169

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Re: front driveshaft
« Reply #2 on: September 22, 2006, 09:08:00 am »
i had to have some driveshaft work done and i just carried it to a local welding shop. cut the yoke off at the factory weld, shorten and reweld the yoke back on. balance is perfect on mine!

1981 K10, 350 - SM465 - NP205 sittin' on 37's
1983 C10, 305HO - TH400

Offline Blazin

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Re: front driveshaft
« Reply #3 on: September 23, 2006, 08:28:00 am »
I shorten my own front shafts. Balance is not a big deal as you are not traveling at speed in 4x4. I scribe three long lines on the shaft two closer together. I cut out the needed length with a large tubing cutter, clamp the shaft to a peice of C channel with the lines lined up tack weld three spots, flip it over tack weld three more spots, turn it and weld short beads on oposite side till its done.

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Offline Z28 c10

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Re: front driveshaft
« Reply #4 on: September 23, 2006, 06:21:00 pm »
Just add another couple inches of lift. That'll take up the extra length on that shaft, lift it, fat chicks can't jump!


 JayTater

 Z28 C10

Edited by: Z28 c10 at: 9/23/06 5:22 pm

Offline GMCTed

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Re: front driveshaft
« Reply #5 on: September 24, 2006, 08:35:00 am »
Thanks for the help. the guy that wanted to buy it backed out so i`ve decided to keep it. i would love to lift it more but unfortunately it would no longer fit in my garage if i did.>:  


Offline tornado427

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bigblock front springs for 4" lift
« Reply #6 on: October 17, 2006, 11:45:00 pm »
I have a "frankenstien" truck its an 82 silverado c-10 6.2L cab & bed mounted on an 86 K-20 custom deluxe under carridge I installed an SM 465 tranny & NP 205 case, hooked to a built 427 bigblock, the frame allready had a Dana 60 up front & a semi floater 14" out back which I replaced with a full floater 14" I need to replace the front springs and lift the truck at least 4", I will probably just use a flip kit for the rear. so does any one know where I can get some springs? also some bigblock headers that will clear the Dana 60? every one tells me I have a 1 ton because of the front and rear axels, but I swear the donor truck was a 3/4 ton thanx, Doug 8)   sorry I posted this as a reply, I meant for it to be a new topic!  First time poster on this forum, maybe the moderator can move this? :o  

Edited by: tornado427 at: 10/17/06 10:48 pm