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DIY mock adjustable driveshaft for calculating angles

888 Views 6 Replies 6 Participants Last post by  69-CHVL
Thought some may find this useful for making sure your working angles are good before ordering a $3-4-500 driveshaft only to find you have to send it back for modification or having to buy another altogether because your angles are off which ends up changing the length of the shaft.

I rigged this up with some parts from Home Depot and some misc fittings/plugs I had laying around. The pointed end that I have in the tailshaft of the trans is a piece from a gear puller. The part that is in the pinion is a grease fitting. All the couplers/reducing bushing can be turned in/out to keep the shaft in nice and tight. And the magnetic angle finder which I highly recommend (from Amazon) sticks to the shaft real nice.

I'm trying to find a way to measure the axle to driveline offset, I think I can do that once I have the real shaft in place and I'll put a protractor-type device on the universal cap and measure the shafts horizontal angle.

Think of this as if it were an adjustable pushrod for your driveshaft :p

Interestingly, the angled that I measured matched the angle I came up with using a right angle calculator, and measuring the center point of the pinion and tailshafts from the ground. I just wanted to see it with my eyes.

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So it basically shows where the driveshaft will sit. That's the last piece of the puzzle AFTER setting the engine/trans and pinion angle.
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