Irocem99

Now there is a squeak in the left rear,plus it sounds like its clicking in the back,which I'm sure it the swivel ***** on the ends. Its a double adjustable Spohn.. Any suggestions?

xbcrguy182x

Did you grease the bushings?

Irocem99

I didn't install it,my mechanic did and actually ,I don't think he did..

xbcrguy182x

He probably didn't realize that you have to grease them.

Irocem99

Thanks..I'm sure that's what it is..

DRGnFLYZ28

If they are poly and he didn't know to grease them, he might not have pre-loaded the bar before installing it either. Might want to pre-load, grease then torque.

z28bryan

iTrader: (7)

If it's a dual rod ended bar, I don't think it needs to be greased. Haven't heard of too many rod ends needing grease

I know you had the mechanic install it, but can you go under the car and check out both ends to make sure the nuts are tightened on both sides pretty good? Make sure they are torqued correctly. In my experience, depending on the mechanic they may not give a crap if they installed it poorly, as long as they made their money they are happy. I've had installers leave bolts and nuts stupidly loose, lugs fall off my wheels, etc.

Irocem99

Actually,when I say my mechanic,I mean he works for me..He does care,but some of these guys just don't know. We did have it up on the rack to re tighten the nuts,they were loose. I will look under the car to see..And what do you mean preload it?

99Bluz28

iTrader: (35)

Make sure the rod end jam-nuts are tight, otherwise they'll make a lot of noise.

dragonrage

If you get the bolt holes lined up then you're fine. Maybe you're confusing a PHB with... something that needs to be "pre-loaded"?

LS1BLKSS

iTrader: (36)

check if everything is tighten pretty good, and do you know if he adjust it?

Irocem99

He adjusted it. We re tightened it. We will throw it back on the hoist to check it again..Is there zerks for grease? I don't remember..Also,I noticed that it rides a little rougher. But it did center the rear..

z28bryan

iTrader: (7)

Rod ends will always be a slight bit more harsh/noisier than rubber bushings. Some people say they don't notice it, other people say they do.

I'm assuming this is a double rod ended bar since you said double adjustable?

DRGnFLYZ28

No, not confusing it with another part... look at my sig.
I have the BMR adjustable with poly ends. Pre-loading is simply making sure the suspension has the weight of the car on it and is in it's regular position prior to the bolts being torqued down. If you install the PHB with the axle hanging down , tighten the bolts, then let the car down, you are basically "binding" the bushings. Torque the bolts when the car is on a flat rack or on the ground while the suspension "pre-loaded" and it will prolong the life of the bushings, reduce noise and allow full suspension travel. Don't forget to grease them too

Irocem99

Hmm we didn't do that.. We tightened it in the air.. I've seen a debate about this before..

dragonrage

Absolutely untrue. The bushings don't significantly bind on that axis. And if they are properly greased, then it's even less.

Irocem99

I talked to my mechanic and he said he tightened it on the ground..

koolaid_kid

iTrader: (21)

They don't take the synthetic grease like the poly ends (which have zerk fittings), but they do require a lubricant. UMI sells it on their website, which should give you an idea of what to use.

twitchtwice

iTrader: (12)

i dont greese my daphb. but i do greese the poly ends on my lcas. i have a bunch of clicking noises that come from my rear and im pretty sure in my DAPHB

DRGnFLYZ28

OK, help me out here and explain how the f-body Axis of rotation is limited to a primary axis, and in particular the one you claim won't bind. If the axis extends beyond the primary as explained below then bind is a consideration. Polyurethane, preload and bind is old school knowledge and should be applied as such.

"Through deformation, rubber bushings allow a large range of angular motion along a primary axis of rotation. Some bushings pivot only along the primary axis, others along two or more axis through compression.

Unfortunately polyurethane bushing replacements sometimes find their way into bushings that require multiple axis of rotation. Nearly incompressible, polyurethane binds along any secondary axis.

Bind occurs when the the pivot points of the suspension cannot move as intended. As it relates to third- and forth generation F-body car, bind is when the pivot points do not move smoothly under load (stiction, or static friction) or when the suspension moves outside its (or one or more of its components) design parameters (in this case, range of motion restricted by the lack of compliance in the polyurethane bushings)

Under hard cornering, bind can create dangerous handling conditions"

Just food for thought...