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#26 | |
Junior Member
![]() Join Date: Mar 2007
Location: DAYTON
Posts: 505
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Re: Driveshaft concerns/questions
Quote:
Maybe the rear shaft just needs shortened after substantial lowering?
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frontstreetcycle on Instagram Last edited by scrapmetalart; 10-19-2010 at 04:42 PM. |
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#27 |
the boat guy
Join Date: Jul 2007
Location: springfield mo
Posts: 2,339
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Re: Driveshaft concerns/questions
my last post was only referring to 1 piece driveshafts.
The stock style carrier bearings do allow for some movement fore and aft. If you use a more solid carrier you would have to put a slip in the rear shaft. Carrier bearing refers to 2 piece driveshafts only. Trailing arm trucks usually don't require much slip at all. Which is the only reason can assume gm didn't see the need for a slip in the rear shaft of a 2 piece driveline.
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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, |
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#28 |
Sierra Grande Club
Join Date: Jan 2007
Location: New Mexico USA
Posts: 2,433
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Re: Driveshaft concerns/questions
I went to the local drive-line shop and ended up purchasing another carrier bearing for the time being.
He was telling me that that a one-piece drive shaft would need to a large diameter as the skinny ones tend to whip/flex in the middle. He also explained that the carrier bearing allow the shaft to move back and forth like the slip joint (like mention above). But one problem is when you lower the truck your putting allot of stress on the center bearing. So I'm going to try to determine how much too long my shaft is and see if it's alright with the current setup. I'm watching my neighbors house while he's away and I took a peak at his 72 step side. It all original and has a one-piece. Could this be because it's a manual transmission? Should I just leave a note thanking him for the drive shaft? ![]()
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1971 GMC Sierra Grande, 1/2 ton short wide, original 4 bolt 010 020 block & heads. (matching #'s). 383 stroker, SMI q jet 750 cfm, Lunati Voodoo 60102 cam, Scorpion roller rockers, Spin Tech pro street mufflers with X pipe. ![]() |
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