Hello, My recently purchased 1983 CJ7 has an inline 258 6 cylinder. I am a first time jeep owner and loving it. There is a vibration in the drivetrain somewhere and I suspect it is the motor. I will vibrate when in park or in neutral sitting still. Are these motors externally balanced?
Check motor mounts and check tranny mounts especially the torque arm support off the tranny. If you have poly bushings instead of rubber it will vibrate more
CJ7/SOA YJ leaf/5.3LS/t18a/d300 clock/37"Pitbull Rockers/H1's/14 bolt/d44 ARB 4.10 High Steer
I believe the AMC v8's are all externally balanced, so if the flexplate is from a 304 it would not be neutral balanced. But I could be wrong. I have a TF999 bolted to my 258. Pan shape will tell you if it is a 727 or 999.
'84 CJ-7 | REBUILD IN PROGRESS
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