Pinion angles

[747mopar]

i just went through all of this & this is what i set my angles ,,trans is 1.5 going down from left to right,shaft is .5 going down L to R,
rear end is 0 not under a load, i also had a nice lite 4 in diam alum shaft built.

We're pretty close then, my motor is 2.5" down with the pinion up 1 degree which equals a 1.5 degree difference like you. Did you have a vibration and if so was it only on coast, high rpm's or all the time? Thanks

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A loose slip yoke will definitely cause a driveline rumble sound or vibration. Also check the yoke dimension with calipers or a mic to see where the error actually is. The yoke in my Charger is a new 7290 (Spicer 1330 yoke is NLA) but .005" undersize, and with no real way to fix that, I made a new bushing for the tranny. Nice and snug now so hoping for vibration free driving!

Thanks Meep, will do.

 

[cdr]

i had a low speed vibration ,has none now so far up to 90 mph,will test further after new engine install.

 

[747mopar]

I for some reason just pulled out my manual and started scanning threw the troubleshooting in the prop shaft section and come across something that I didn't think about. This would explain why this problem has persisted threw both trannies, drive shafts and rear ends.................. It states under possible causes of driveshaft vibration "Rear springs not matches", this is something I've been fighting with Just Suspension to get straightened out for me with no luck. I ordered a complete suspension kit from them that included EVERYTHING but my rear has always been uneven, one side is 1" higher than the other. I've been running a lowering block on the one side to even it out until they make it right and never thought this could cause a problem? Time to turn up the heat on them to straighten this out so I can eliminate this possibility.