70 duster rear brake drum/vibration question
Well I found a few things but can’t test the car until the spring, lots of snow here in Bc. I found a couple stripped bolts on a Ralley wheel centercap which was causing a lot of the high speed vibe. At high speed that darn centercap started going nuts wobbling around. Ended up buying a whole new set of ralleys from wheel vintiques with new center caps and retired the 50year old original ralleys. It did make a huge difference but some vibration still there.
Pulled new driveshaft again found the phasing was off a bit. Had another built with brand new spicer Ujoints and a new slip yolk also, it’s looking perfect so I’ll be trying that in the spring and see if I can get the rest of the vibe gone. I’m still kind of suspicious of the weights on the rear drums as one drum has substantially more weights. I may convert to rear disc this year also. Entire suspension and driveline from flywheel back is new. Everything’s been checked 5 times over so not sure what else could be causing the vibe. The vibration is 80% better after rebuilding the rear end and fireplace going the old wheels with that one bad centercap. I’ll update this further in the spring when the car comes out and I try the 2nd new driveshaft. Have nothing left to replace but the engine in this duster.
