Message: I just ordered an underdrive pulley from Truck Performance and put it on my truck.
I had to use a 90" belt for it to work. The instuctions said to use a 94.5" ,but it was to long.(Almost exact size of factory belt.)
Could the pulley be too small?
-2000 3.9 Dakota Sport Plus - homemade intake - flowmaster
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Subject: Underdrive pulley