motor mounts

[cmatb08]

any one replace motor mounts with performance mounts? are these even available for our 4.2s?

 

[The_Roadie]

If you need to replace them for the annoying 10 Hz vibration that's worse in DRIVE than in NEUTRAL, only OEMs are reported to work well. Aftermarket ones have a different stiffness that doesn't solve the rotational vibration.

Except for the vibration due to collapsed mounts, there's no reason to change them.

"Performance" is an adjective better applied to anti-sway bar bushings than motor mounts. THOSE have upgraded polyurethane versions available.

 

[cmatb08]

cool thank roadie! ya we have 146k and we are just now need to replace them so i cant really complain about the factory mounts needing to be replaced!

 

[cmatb08]

would it be a good idea to replace the transmission mount along with the motor mounts?

 

[The_Roadie]

A case can be made for it, and a couple of members have done that, but I didn't change mine when the time came, and I beat on my mounts pretty well with all the offroading. I doubt anybody's tranny mount truly needs changing unless it has visible damage.

 

[cmatb08]

ok cool thanks roadie i just wanna cover all my bases! i guess i cant really complain the original fuel pump and motor mounts and we are sittin at 146ish. if the next set of mounts last as long as these ill be happy