HELP !!!!! Lining up driveshaft ??????? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

woodrow59 · 08-16-2002, 05:51 PM

Help !!!!!! Finally found the right U joint ,,,,, Marked the 2 piece driveshaft before I took it off ,,,,, But with messing with putting the U joint in and all the oil and grease the mark came off ,,,,,, I know, I now know anyway that I should have marked it better !!!!

Please help ........ any markings on the driveshafts to line them up ??????????? I'll donate $25 to the board if anybody has got the right answer !!!!!! (bribery will get you everywhere !!!! LOLOL)

woodrow59 · 08-16-2002, 06:02 PM

Gotta go put it bacK together (it's gonna be dark in an hour) I'll keep checking back!!!!!!!

palallin · 08-16-2002, 06:05 PM

The crosses all have to line up. Because of the positions of the splines, there should be only ONE way for that to happen, with everything indexed and in balance.

woodrow59 · 08-16-2002, 07:19 PM

Hey, St. James ,,,,,, I grew up in Salem !!!

Anyway, just put it back together. Are you saying as long as the crosses on the U joints line up I should be ok ????

P.S. Go Cardinals !!!!! LOL

O'l Buck · 08-17-2002, 01:24 AM

it will work for awhile out of phase, but the ears on the shaft part of the drive shafts should really be in a direct line with each other, as if it were one solid tube, and the flanges on the slip yoke and the rear end should correspond with each other......I saw a semi truck that had the drive shafts put in out of phase and the guy couldn't figure out why he was eating U-joints once a month.....after he phased the driveshaft, he had no more problems.

jhow66 · 08-17-2002, 08:56 AM

Book says to line up all yokes then rotate then rotate the rear shaft 4 splines to the driver side. (or 90*-16 spline shaft) Now go finish your job.

08-16-2002, 05:51 PM	#1
woodrow59 OzarkHillbilly in Atlanta Join Date: May 2002 Location: Douglasville, Ga. Salem, Mo. Posts: 386	HELP !!!!! Lining up driveshaft ??????? Help !!!!!! Finally found the right U joint ,,,,, Marked the 2 piece driveshaft before I took it off ,,,,, But with messing with putting the U joint in and all the oil and grease the mark came off ,,,,,, I know, I now know anyway that I should have marked it better !!!! Please help ........ any markings on the driveshafts to line them up ??????????? I'll donate $25 to the board if anybody has got the right answer !!!!!! (bribery will get you everywhere !!!! LOLOL) __________________ 72 custom/10 LWB 68 Longhorn C20 Custom Camper (sold)

08-16-2002, 06:02 PM	#2
woodrow59 OzarkHillbilly in Atlanta Join Date: May 2002 Location: Douglasville, Ga. Salem, Mo. Posts: 386	Gotta go put it bacK together (it's gonna be dark in an hour) I'll keep checking back!!!!!!! __________________ 72 custom/10 LWB 68 Longhorn C20 Custom Camper (sold)

08-16-2002, 06:05 PM	#3
palallin Registered User Join Date: Jul 2002 Location: St. James, MO Posts: 1,238	The crosses all have to line up. Because of the positions of the splines, there should be only ONE way for that to happen, with everything indexed and in balance. __________________ '69 Longstep K-10: 327/SM465/T-221/Closed Knuckle Dana44/12-bolt.

08-16-2002, 07:19 PM	#4
woodrow59 OzarkHillbilly in Atlanta Join Date: May 2002 Location: Douglasville, Ga. Salem, Mo. Posts: 386	Hey, St. James ,,,,,, I grew up in Salem !!! Anyway, just put it back together. Are you saying as long as the crosses on the U joints line up I should be ok ???? P.S. Go Cardinals !!!!! LOL __________________ 72 custom/10 LWB 68 Longhorn C20 Custom Camper (sold)

08-17-2002, 01:24 AM	#5
O'l Buck Recovering Truck Driver Join Date: Mar 2002 Location: Orleans, NE USA Posts: 1,883	it will work for awhile out of phase, but the ears on the shaft part of the drive shafts should really be in a direct line with each other, as if it were one solid tube, and the flanges on the slip yoke and the rear end should correspond with each other......I saw a semi truck that had the drive shafts put in out of phase and the guy couldn't figure out why he was eating U-joints once a month.....after he phased the driveshaft, he had no more problems. __________________ 67 K-20 350, SM465, Eaton rear, 4.56 no spin option 00 Dodge 2500 4x4, 24V cummins, 5 speed Chad South Central Nebraska

08-17-2002, 08:56 AM	#6
jhow66 Registered User Join Date: Jun 2002 Location: Knoxville Tenn. Posts: 3,058	Book says to line up all yokes then rotate then rotate the rear shaft 4 splines to the driver side. (or 90*-16 spline shaft) Now go finish your job. __________________ 56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer

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