No mater how you do it, its very time consuming we use a mock up block and a laser pointer. Can't tell you anything more then that it's top secret. Just joking next time we have it all set up i will post some pictures. LOL
I like a digital protractor because they read out in .1 of a degree increments and you can zero it out on a surface to compare the angle to another.
Twin Turbo 1800 HP V-Drive lake boat
Last edited by Rexone; 04-29-2008 at 02:36 PM.
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What Rex is saying is correct... as previously stated, the offset angles cause the bearings to rotate inside the u joint and make them last longer.
That said, when we built or drag car (full tube chassis 9.90 car) Chris Alston told us to make the drive line straight at ride height (no offset). I asked him about the u-joint issue and he said it didn't matter that much and it took a certain amount of energy away that could go into making the car go down the track... Thought it might be negligible but we set it up as he suggested. I raced that car for 10 years, thousands of passes driving to the starting line and back to the trailer... U-joints were fine.
Also, I've always had slammed pick-ups.. again, driveline angles always jacked up trying to get everything right. You could hear the u-joints howl at high speeds, but they never seemed to wear. In my latest dually, we ended up using angle finders to figure out what was wrong, raising the back of the motor and with shims everywhere else and finally got it to quit howling, but it's still not perfect...
My point is it's always best to do it right, but U-joints seem to be able to take a tremendous amount of abuse and not cause any issues.... Something to consider.
Solid drive lines have to be as close to perfect as you can get...no excuses. Good luck...
OK. First you start out with three fingers of Bookers 125 proof bourbon. This will give your confidence a boost. Next, securely grip a 3 lb ballpeen hammer in one hand, and dial 999 with the other. OK now after stepping in a bucket of red paint... Uh oh... this is the tune up seqence. nevermind.