Phasing U-Joints

[ranman]

Not sure if that's the correct term or not, but I have read or been told different things from different sources.
Anyone have a diagram showing the proper U-Joint alignment or phasing on Van with a two piece driveline?
It's on a 1/2 ton 1977 Chevy van.

 

[grumpyvette]

yes theres a good deal more info in the links

http://www.roddingroundtable.com/tech/a ... eline.html

http://www.rodandcustommagazine.com/tec ... to_02.html

http://www.drivetrain.com/parts_catalog ... blems.html

http://www.swedishbricks.net/700900FAQ/Driveline1.html

http://www.carcraft.com/techarticles/cc ... index.html

http://www.vcoa.org/700-900-faq/Driveli ... fAlignment

http://www.vibratesoftware.com/html_hel ... 20Required

http://www.mavcc.com/PDFFiles/DriveTrainsSP02.pdf

viewtopic.php?f=71&t=1261&p=2709&hilit=narrowing#p2709

http://www.differentials.com/diagnose.html

"
Tech Information
Diagnosing Driveline Problems
Diagnosing Noise

Whirring noise only while decelerating at any or all speeds is most likely caused by bad pinion bearings or loose pinion bearing preload, and almost never by bad ring and pinion gears.

A howl or whine during acceleration over a small or large speed range is usually caused by worn ring and pinion gears or improper gear set up.

Rumbling or whirring at speeds over about 20 mph can be caused by worn carrier bearings. The noise may change while turning.

Regular clunking every few feet may indicate broken ring or pinion gears.

Banging or clunking only on corners can be caused by broken spider gears, lack of sufficient positraction lubrication, or worn positraction clutches.

Rumble while turning may indicate bad wheel bearings.

A steady vibration that increases with the vehicle’s speed can be caused by worn u-joints or an out of balance driveshaft.

Clunking only when starting to move or getting on and off the gas might be loose yokes, bad u-joints or worn transfer case or transmission parts "



does that info help?

 

[ranman]

Yes, that's just what I needed.

PS, I thought I replied to this last night but nothing showed up. I must have hit a wrong button. :?