For over a year I've been chasing on/off a popping suspension noise from the front suspension. After having the noise still present, even after a full OME spring replacement, I was really pulling my hair out.
As usual once I identified the culprit I was doing the proverbial forehead smack. Read on...
In my case the keeper bolt for the leaf perch was protruding into the area of the military wrap eyelet on the rear of the passenger side spring. I actually found them root cause by mistake while preparing to replace bushings for the 2nd time.
When I backed out the little 12mm keeper bolt to start the process I noticed a clear rub mark on the very end of the bolt(like it was hit on the edge by a grinder wheel) ...and a subsequent rub on the military wrap. None was noticeable until I pulled the bolt out and inspected it. OMG...imagine my next words...ah ha..mystery solved.
So my exact symptom was while cornering or parking I would get a loud pop. The military wrap would shift every so slightly, engage the end of the frigin bolt and ' pop' past it. Boom the source of a pop that resonated thru the floor of my truck as if something was really wrong. Audible that even my Wife would always ask...what's that noise..I can feel it in my feet? Arghhh. Even old timer Toyota techs could not help me locate the source. Hence my replacement of the springs...trying to fix this issue.
Hopefully this post helps some folks rid themselves of this same annoying 'feature' and save themselves a ton of time and money, other than the cost of a few washers!
See attached Pic showing exactly what I'm describing, shorten the bolt to give the military wrap more lateral travel...problem solved!
Yup this post could have been shorter, but I guess I had a lot of pent up frustration to share with on this really annoying issue.