While looking for advice on pulling an old U-joint from my M41-ready short front driveshaft, I ran across some info regarding balancing your driveshaft.

Acording to the source (popular mechanics) the two sections of driveshaft are ballanced as a unit (which is why marking the two segments before removing them is so important to getting your shaft spinning smoothly again. They gave some suggestions on how to use a few worm-gear hose clamps to balance your driveshaft (acting as counter-weights).

I've noticed that my new frontshaft has been balaced at some point (it has a small weight weilded to it). My spare rearshaft also has a weight on it, so I suspect that my installed rearshaft may have been balanced at some point as well.

Since I'm removing my old frontshaft and adding a new shorter frontshaft, and if both appear to have been balanced before, then should I be okay, or will I need to get this new set re-balanced as a single unit.

Also, does that hose-clamp thing work? The PM instructions lost me when they directed one to use a broom with a piece of chalk to "mark" the shaft in some way. I've no idea what the point of that exercise was supposed to be.



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1967 P220 (Someday my daily driver...), 1971 P1800 (Parts Car), 1972 145S (1993-1997), 1977 245 DL (1993-1999), 1983 245 (1997-2001), 1986 745 GLE (1997-2000), 1990 740 GL (2003-4), 1995 945 (2004-Present)....