Two-piece drive shaft phasing - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gcburdic · 05-11-2009, 06:00 PM

Hey Guys,

I wanted to bring this back to the top, and don't mean to hi-jack this thread, but I think it applies?!?!?
I stopped by the shop that balanced the driveshaft and installed the carrier bearing....he looked at it again and said that he knew it was 1/4 turn out, but said that is how some of them came from the factory?!?!....
I really didn't notice any vibrations while driving it home, but I can't say there isn't one.....ugh....should I take it to another shop and get it in phase, or should it be okay??

Thanks for any input!!!

eightbanger · 05-11-2009, 06:36 PM

Geoff, just for peace of mind take it to another D/S shop and let them give you a second opinion.....

brad_man_72 · 05-11-2009, 08:10 PM

some 1st gen camaros were 15* out of phase. i cant imagine a ds shop would leave the shaft out of phase when they were going to ballance anyways. their are a ton of people that think they know how to build a driveline, most of them dont have a clue.
ive seen mechanics SLIDE a driveshaft apart get the yokes out of phase with a blind spline then use a BFH to BEAT the driveshaft back together, ruining several expensive pieces of the ds.

05-11-2009, 06:00 PM	#1
gcburdic Restoration Virgin! Join Date: Jan 2008 Location: Huntersville, NC Posts: 8,299	Re: Two-piece drive shaft phasing Hey Guys, I wanted to bring this back to the top, and don't mean to hi-jack this thread, but I think it applies?!?!? I stopped by the shop that balanced the driveshaft and installed the carrier bearing....he looked at it again and said that he knew it was 1/4 turn out, but said that is how some of them came from the factory?!?!.... I really didn't notice any vibrations while driving it home, but I can't say there isn't one.....ugh....should I take it to another shop and get it in phase, or should it be okay?? Thanks for any input!!! __________________ Geoff with a G 1968 Chevy C10 SWB The Mistress 1972 Custom Deluxe C20 Suburban A Suburban Named Isabella 1966 Ford Mustang Mama's High School Graduation Present

05-11-2009, 06:36 PM	#2
eightbanger 454 MAKES IT ROAR Join Date: Jan 2008 Location: Essex, U.K Posts: 2,701	Re: Two-piece drive shaft phasing Geoff, just for peace of mind take it to another D/S shop and let them give you a second opinion..... __________________ Nigel. An American living in a British body. 1971 Chevy Cheyenne 10 454 "In a time of universal deceit, telling the truth becomes a revolutionary act." - George Orwell "When injustice becomes law, resistance becomes duty" - Thomas Jefferson No more pain. 03.12.60 -- 12.28.10 http://www.youtube.com/Eightbanger

05-11-2009, 08:10 PM	#3
brad_man_72 the boat guy Join Date: Jul 2007 Location: springfield mo Posts: 2,339	Re: Two-piece drive shaft phasing some 1st gen camaros were 15* out of phase. i cant imagine a ds shop would leave the shaft out of phase when they were going to ballance anyways. their are a ton of people that think they know how to build a driveline, most of them dont have a clue. ive seen mechanics SLIDE a driveshaft apart get the yokes out of phase with a blind spline then use a BFH to BEAT the driveshaft back together, ruining several expensive pieces of the ds. __________________ 67, swb, fleet, tach, throttle, 5.3, 4l60e, 3.73's, fuel cell, 5 lug, p.d.b., 4-6 drop. great little truck 66, stevens drag/ski 18' silouette, 350, 2.02 doublehump heads. comp extreme marine 278 cam, vette 7 fin valve covers, old polished edelbrock intake, velvetdrive, casale v-drive, adj cavitation plate. 28, model a rpu project, Last edited by brad_man_72; 05-11-2009 at 08:11 PM.



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