Your gut instincts are telling you that something is going on.... And you know anything that vibrates can affect something... Seals, bearings and so forth... And at the minimum you want to head it off at the pass.
It could be nothing more than a transmission mount that's ready to be replaced... A good driveline shop that works with tjs will tell you quickly that a quality rubber mount is very important
From what you're describing it's going to be something pretty small.
I'm trying to think if I'm telling you right on the direction it moves when you lift it... I just went through all this on mine... And I ended up going to a CV drive shaft... But each lift and combination of components varies based on what the owner has going on.
I know that it's going to raise under torque load..
Mine would not vibrate with a passenger when I did the taller springs in the back and then when he got out it did.
if I'm telling you backward on the consequences of lift and pinion angle I stand corrected... But the reason that people do transfer case drops is to keep the transfer case parallel to the lower pinion angle....
If I'm correct.
Good luck. You will get it.
It could be nothing more than a transmission mount that's ready to be replaced... A good driveline shop that works with tjs will tell you quickly that a quality rubber mount is very important
From what you're describing it's going to be something pretty small.
I'm trying to think if I'm telling you right on the direction it moves when you lift it... I just went through all this on mine... And I ended up going to a CV drive shaft... But each lift and combination of components varies based on what the owner has going on.
I know that it's going to raise under torque load..
Mine would not vibrate with a passenger when I did the taller springs in the back and then when he got out it did.
if I'm telling you backward on the consequences of lift and pinion angle I stand corrected... But the reason that people do transfer case drops is to keep the transfer case parallel to the lower pinion angle....
If I'm correct.
Good luck. You will get it.