How to Tighten Body Mounts
- Thread starter Indiana80
- Start date
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There are locking tabs on all but the No.1's.
I did a 1" body lift and didn't think to weld the oem tabbed washers to the new bolts so torquing was a pain and if I need to check down the road will have to remove carpet, again.
- Thread starter
- #3
correct
If there's no rust it's fairly straight forward. Sometimes they can be a little "seized" but it can be hit or miss.
Mine were rust free but had 2 of them that took a bit of convincing, even with an impact. If any feel that they don't
want to turn then I'd leave them alone to avoid breaking or stretching.
- Thread starter
- #6
My DS mount is popping on occasion. I was able to loosen the mount with a socket. Bushing is original and doesn’t looked cracked or broken. Now trying to decide if I should cut a shim out of a 1/4” thick of rubber industrial belting and try to shim it in somewhere. Not sure where to shim because not sure where pop originates- I do feel it pop in that no 2 mount when 2 people are rocking truck back and forth. Also, not sure how to tight to go on bushings…anyone have an idea roughly on torque spec?
There is no specified torque in the fsm. I pulled until tight and out of curiosity threw a torque wrench on and was around 45 ft#.
I checked mine and have 3 that will turn with quite a bit of force, but less than what it needs to be tight. I'll prob throw a tack on the upper washers so i can torque down without pulling any interior pieces again.
If I remember correctly, use a 17mm wrench on the mount nut while holding the mount bolt with a 9mm socket... I always soak the bolt/nut with a rust buster of some sort and then warm them up with a MAP gas torch to get them moving...
- Thread starter
- #9
Fortunately, essentially rust-free undercarriage here. So, today I loosened all my body mounts pretty easily. Retorqued them all to 35-40 ft/lbs. Still get a pop with slight body articulation and occasionally on turns in town. The pop feels like it’s right in front of me- maybe to my left and down. I’ve got SPC UCAs that are less than a year old. I’ve got Freedom Off Road UCAs on my list to swap in. I want to get the SPCs out of there anyway- will see what that does for the popping noise.
Definitely check over the front end suspension. Feedback is that even with suspect body mounts those that replaced them saw no noticeable improvement. I have a few that have the rubber isolators that have separated and i have no issues with body movement/noise. The mounts have full length bushes that really do all the work and the rubber is just to suppress the transfer of chassis noise. I'd consider these more of a "semi-solid" mount.
I feel like I've heard of several folks with SPC uppers with limited mileage on them have issues with popping - I'd definitely investigate that.
- Thread starter
- #13
Maybe 10K miles on the SPC UCAs. I bought them last Feb and I think they’ve already issued another revision since the set I bought- but, I could be wrong.
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