Bought a Underdrive pulley from the E-store and went to install and noticed it doesn't line up correctly with the rest of the pulleys.......seems as if its too "tall" and the groves are about 1/16" to 1/8" off.....can't figure out how to measure it correctly....anyone else experience this before? and would it be ok if i just use warshers to space out the rest of the pulleys to make them align?
1980 CJ-5, 360 powered, T-18, Dana 20, Advanced Adapters output , 4.56's, Dana 30 frt chromoly shafts w/297 joints and Tru-Trac and M20 rear with Detroit, Superior shafts, and disc brakes and Tom Woods frt and rear shafts.........about 10k in misc aftermarket parts!
Hmm thats very strange! I have heard and have witnessed a couple of 1980 360s that had differetn crank pulley lengths but not on any 304s. I would send it back in for inspection!
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MC....can you give me some measurements to check to see if mine is in fact machined wrong? and if so i do believe i have some parts that have yet to be shipped from you and just bill me for another correct pulley and then i'll ship this one if it is wrong back and get a refund???
1980 CJ-5, 360 powered, T-18, Dana 20, Advanced Adapters output , 4.56's, Dana 30 frt chromoly shafts w/297 joints and Tru-Trac and M20 rear with Detroit, Superior shafts, and disc brakes and Tom Woods frt and rear shafts.........about 10k in misc aftermarket parts!
1.905 from mounting surface to the first groove. You could also send us your steel pulley as a model.
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Ok.....i'll get mine measured and measure the old one to check it.....my stock pulley on the motor was just a 2 groove but i had a 3 groove layin around so i tossed her on to run dual p/s belt and they both had lined up ok......
1980 CJ-5, 360 powered, T-18, Dana 20, Advanced Adapters output , 4.56's, Dana 30 frt chromoly shafts w/297 joints and Tru-Trac and M20 rear with Detroit, Superior shafts, and disc brakes and Tom Woods frt and rear shafts.........about 10k in misc aftermarket parts!
Stocker measures aboot 1 7/8" and the Underdrive measures 1 15/16"
1980 CJ-5, 360 powered, T-18, Dana 20, Advanced Adapters output , 4.56's, Dana 30 frt chromoly shafts w/297 joints and Tru-Trac and M20 rear with Detroit, Superior shafts, and disc brakes and Tom Woods frt and rear shafts.........about 10k in misc aftermarket parts!
SO...if the crank pulley comes to be 1.9375" and the stock one comes to 1.875".these are "about" answers......then that means im going to have to use spacers behind the rest of the brackets?
1980 CJ-5, 360 powered, T-18, Dana 20, Advanced Adapters output , 4.56's, Dana 30 frt chromoly shafts w/297 joints and Tru-Trac and M20 rear with Detroit, Superior shafts, and disc brakes and Tom Woods frt and rear shafts.........about 10k in misc aftermarket parts!
I wouldnt mess with it. Send in both pullies and we will make a nice accurate pulley for you. You must have a 1972 motor.
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1-651-433-3689 TOLL FREE 1-855-433-3689
Well.....from what i under stand the heads that came off of it are from a 71' or 72' so im not sure exactly what year it is......but the rest of my bottom crank pulley i have all seem to measure the same size........
1980 CJ-5, 360 powered, T-18, Dana 20, Advanced Adapters output , 4.56's, Dana 30 frt chromoly shafts w/297 joints and Tru-Trac and M20 rear with Detroit, Superior shafts, and disc brakes and Tom Woods frt and rear shafts.........about 10k in misc aftermarket parts!
AMC changed the water pump in 1973, going to a taller pump. The pulleys changed that year too, to match the pump. As long as you have a matched set, you're good, but you can't mix the short and tall pieces.
Bob
tufcj
1969 AMX
1967 Rambler Rogue
If you need a tool and don't buy it...
you'll eventually pay for it...
and not have it.
Henry Ford
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