New vibes!

[robert stalberger]

I recently replaced my 4.0L non-HO and now I have driveline vibes. I have been running the Rusty's 4.5 spring pack kit and 1" T-case drop with 32" BFG M/TR's for about a year and never had any vibes. Now since putting in the new motor I get vibes between 1200 and 1400 RPM's. It hasn't effected the performance on the road or trail, but I was just wondering if anyone knew why it would do it now and it didn't before?

 

[Kejtar]

I recently replaced my 4.0L non-HO and now I have driveline vibes. I have been running the Rusty's 4.5 spring pack kit and 1" T-case drop with 32" BFG M/TR's for about a year and never had any vibes. Now since putting in the new motor I get vibes between 1200 and 1400 RPM's. It hasn't effected the performance on the road or trail, but I was just wondering if anyone knew why it would do it now and it didn't before?

How are your motor and tranny mounts looking?

 

[robert stalberger]

Replaced all with new ones when I replaced engine.

 

[Kejtar]

Replaced all with new ones when I replaced engine.

Still take a look at them to make sure that all look good and all are torqued down properly.

 

[DrMoab]

Replaced all with new ones when I replaced engine.

Did you replace them with stock rubber ones or urythane ones? In an XJ the harder mounts will lead to more vibes,