Leaf springs issues

Hi there!! I know this is a known topic. I've been having some squeaky and knocking noise coming from the rear suspension mostly passenger side, I found that the squeaky comes from front bushing,, couldn't find the knocking source yet. (Driveshaft and differential look fine) I replaced the rear shocks couple months ago (bilstein 5100) "not saying that's the cause just giving info".
Only 20k miles can't believe this is happening on a almost brand new truck. Removing the leaf springs don't think will help specially being almost impossible to remove those bushings w/o damage to grease them. Anyways what can y'all recommend? As always thanks in advance for every input.

 

There is a TSB for squeaking leaf springs, not sure what years it covers. But they replace the friction pads that go between the leafs.

EDIT: that TSB is for 16-18. Try using a pressure washer to spray between the leafs. They will build up dirt and squeak

 

Wouldn't that wash out all lubes

 

Knocking? Ever re-torqued your u-bolts?

Spec is 52 ft/lbs; seems anemic to me
Before the spec was available, I re-torqued mine to 75 ft-lbs with no ill-effects.

 

I did retorque them last weekend, same sh... going on. I'm literally driving an 1800s wagon pulled by horses

 

Taking them out to grease isnt too hard and you wont fuck up the bushings, at least mine came out just fine. However if you are gonna open up the leaf pack to grease em you are gonna wanna order new ubolts and a new center pin. About to do that for my old man emu leafs. As for the sound maybe make sure your spare tire isnt loose?

 

There shouldn't be any lube in them. The TSB about the noise, specifically says do not lube the springs. It caused dirt to collect.

 

Factory bushings do not get lubed. Doing so well just accelerate where extremely fast. The grease will collect debris. It’s a really bad idea.

The only other caveat would be if the factory bushings have been replaced with polyurethane

 

Yeah never mind that dirt sticking to the grease thing makes sense. Take it into the dealer if its under warranty for the clunk.

 

I meant the lube on the other parts, even aiming like a champion with pressure washer is impossible to not wash out everything

 

Checked it and just fine, I've read a few threads regarding this matter and nothing

 

https://www.tacomaworld.com/threads/finally-killed-that-retched-leaf-spring-squeak.451011/

 

Tried that didn't work for me

 

You can replace the leaf spring bolts with greaseable bolts. Solves a lot of the issues.

$64 Dobinsons Pair Greasable Pin Compatible with Toyota Tacoma and Tundra 2005-2018 - SP59-060

https://www.amazon.com/dp/B06XDKFHPT

 

I spray mine with white lithium grease when they get noisy. Lasts about a year.

Liquid Wrench® White Lithium Lubricant S-25326 - Uline

 

You installed a greasable bolt?

If so, at least you know that point is not your sound source.

 

How reliable are these??

 

Not the bolts just the others check out

 

I sprayed something similar and nothing, as I said before I'm driving a f.. 1800s wagon

 

Gonna throw out a suggestion to make sure your spare tire is tight/seated in the correct position. I've seen countless people chasing clunks and replacing entire suspensions only to realize their spare was moving around.