Bilstein 5100 / Eibach Gallery

High angle or silicone boots? Hmm sounds like a better option given my CV angles even with the front diff drop installed. That's the biggest downside of a lift is the boots getting worn out/blown

 

your drive line angle is still pretty bad for the last U joint. Id get some axle shims.

 

Yeah I've noticed that. I need to figure out a way to measure what degree shims to get.

 

Doesn't take much. Mine is only like 1/4" thick on the back. Like 3-4*

 

My buddy has some, I'll see if I can get them. No vibes would be amazing!

 

Shimming the axle is the correct method to fix incorrect pinion angle. Check it with a simple protractor, $1 in school supplies.


A little rumble at take off up to 30-40 mph after a lift is almost always incorrect pinion angle.


OEM boot Kits are the best deal going. Around $25 for an inner and $50 for both at the online dealers. The Kits have everything needed, 2 kinds of lube, clamps and all c-clips. You will need a tool if you use the OEM clamps.
The All Pro boot is nothing more than a $10 Porsche 930 CV boot that must be clamped on top of the old boots inner ring. The 930 boot is round and the end bell of the CV is triangular. Sketchy at best with a poor track record plus you still need clamps, lube and clips.

Keep in mind that OEM boots will not fit on most aftermarket Chinese CVs, you know, the cheap ones sold as "new".

OEM clamp tool. Some folks have used "end cutters" with varying degrees of success.

 

Well, I added 8 washers per side to drop the carrier bearing down a little bit, and I THINK it's better...but that might just be the placebo effect.

What's the corrective action if it's an incorrect pinion angle?

 

Would getting 32, or 33" tires change the angle of the CV joints much?

 

Nope

 

I thought it did very little, I noticed from 31s to 33s the angled lessend ? Maybe it's an illusion

 

Dropping the carrier bearing does the same thing as "shimming" the rear axle, to a point. As the carrier is lowered it detracts from the proper angle of the front half of the drive shaft while improving the rear angle. In cases where there is (very) minimal pinion angle error, dropping the carrier a tad, like you did, may provide symptomatic relief. It is just not the best over all solution.
The best use for dropping the carrier is to see if pinion angle is the source of a vibe (outside of actually measuring it), then correct the pinion angle with wedge shaped shims between the spring pack and the spring perch. Search the net for "pinion angle" and "pinion angle shims".
The perfect pinion angle for my springs is around a degree or two down from pointing directly at the carrier bearing. Under load, the rear will tend/try to rotate the pinion "up" (axle wrap) in reaction to the torque of the axles. In a perfect world the rear u-joint will then be at the theoretical strongest angle. Additionally, this slightly low angle will let the rear u-joint bearings move just enough to spread the wear a little and to help to distribute lube. The amount of shimming needed will vary from one spring design to another. There are "guidelines" to determine the required shim for a given lift but I hold to "just measure it and correct it".

Not much if any from diameter. An increase in track width from a larger tire can effectively provide greater leverage through the LCA against the spring resulting in a slightly lower ride height.

 

Ok, thanks for the information. I'll go off-a-researching.

 

Buddy of mine is going to give me some shims so I'll put pics up when I get them on.

 

So I'm having a really hard time deciding which tires to get this weekend
Either the
Nitto trail grapplers
General grabber red letters
Bfg all terrains
Or some Goodyear duratracs
There's a few others but idk yet
Those are my mains four I'm looking at
What do y'all think ? Maybe you guys have some pros and cons for me in these tires

 

Trail Grapplers

 

What is your intended use? How much trail time compared to road time?

I use mine mostly on the road unfortunately. So I got the BFG A/T ko. Its a good A/T tire that seems to last almost forever.

If you plan to use it for mainly offroad, I would look into something more aggressive, with a thick sidewall.

 

Ive been reading on all this mess and still just want a straight up recomendation on what you all would do.

So here is my set up right now;

Billis and eibachs up front, and in the rear i have oem leafs with a 2 in lift block.

also i usually carry about 100 lbs of tools in the bed with me at all times and i have a hardtop are cover too. on the front i have a brush guard that is about 60 lbs.

im happy with the front except that i have a lean on the drivers side about an inch.
also i want to replace my rear leafs to make the truck level.

What do you all recomend for the rear set up and also any ideas for the lean?

 

Get rid of the lift blocks in the back. Get a progressive leaf pack built. Alcans or Deavers. Since you consistently carry weight this will prove to be beneficial.

I believe they make a shim kit for the front. Your lean may improve after replacing leafs.

 

yea the more i look at them i am thinking of going with the deavers. and the block for sure has to go because it is such a rough ride.

do you think i should go with the AAL in the deavers?

 

I did. HOWEVER, I don't consistently carry around added weight in the back. I would do a full leaf pack if I were you.