leveling a trailboss

Mike may · October 26, 2020

The control arms where stock, just ordered ready lift leveling kit with upper control arms designed to change the geometry of the stress on the components especially the control arm and ball joints

ALLSTAR · October 26, 2020

1 hour ago, Mike may said:

The control arms where stock, just ordered ready lift leveling kit with upper control arms designed to change the geometry of the stress on the components especially the control arm and ball joints

The only modification i did on my truck was the 1" spacer. Scared the hell out of me when that tire folded and locked up !.

So that's 2 trailboss trucks that failed. It appears factory 2" plus 1" for 3" total is to much upper ball joint angle.

Beware trailboss owners with lift blocks without upgraded upper a-arms ! .

jgjorge44 · October 26, 2020

6 hours ago, Mike may said:

The control arms where stock, just ordered ready lift leveling kit with upper control arms designed to change the geometry of the stress on the components especially the control arm and ball joints

Did you get it professionally installed, curious because I wanted to do a RC, level but now I’m second guessing... did you do an alignment after installing too?

jgjorge44 · October 26, 2020

On 10/12/2020 at 11:25 AM, ALLSTAR said:

Added a Motofab 1" spacer (CH-1LM-TB) to my 2019 trailboss. after about 8 months passenger side upper ball joint separated.

Normal driving, couple railroad track crossings daily at speed that might have extended suspension.

Lucky i was going only about 25mph when it came apart. Going to go with better angle upper a-arms.

Was your level professionally installed? And did you do an alignment? Curious because I’m second guessing doing it now..

ALLSTAR · October 26, 2020

8 minutes ago, jgjorge44 said:

Was your level professionally installed? And did you do an alignment? Curious because I’m second guessing doing it now..

I installed them myself. Its just a spacer, 2 bolts, Its pretty easy to install, you really cant do it wrong.

I could post a pic when it gets light out. Went right to alignment shop and they had to do a minor adjustment.

Derthax · October 26, 2020

Has anyone replaced the rear 2” block with a 1” to level? This seems much safer, but want to know if anyone has had issues?

ALLSTAR · October 27, 2020

31 minutes ago, ALLSTAR said:

I installed them myself. Its just a spacer, 2 bolts, Its pretty easy to install, you really cant do it wrong.

I could post a pic when it gets light out. Went right to alignment shop and they had to do a minor adjustment.

Here is closer view of ball joint

Musgo · October 28, 2020

I’m not a mechanic. Bought my truck new off the lot as it sits today. Can anyone look at my angles and tell me if I’m driving around a ticking time bomb? If so I’m going to get my suspension fixed.

jgjorge44 · October 28, 2020

9 hours ago, Musgo said:

I’m not a mechanic. Bought my truck new off the lot as it sits today. Can anyone look at my angles and tell me if I’m driving around a ticking time bomb? If so I’m going to get my suspension fixed.

From my understanding is that every stock is already stretched, but still good if you keep factory settings on it. You only push it if you plan on leveling, if so the consensus seems to be to replace the arm to fix the geometry. Readylift has a kit that includes the arm.

ALLSTAR · October 28, 2020

1 hour ago, jgjorge44 said:

From my understanding is that every stock is already stretched, but still good if you keep factory settings on it. You only push it if you plan on leveling, if so the consensus seems to be to replace the arm to fix the geometry. Readylift has a kit that includes the arm.

I agree. MUSGO'S AT4 appears to be factory, and looks good to me . Can someone with just a 1" or 1.5" level with factory upper a arms get a picture of the ball joint angle like the one Musgo posted for a comparision ?

jgjorge44 · October 28, 2020

1 hour ago, ALLSTAR said:

I agree. MUSGO'S AT4 appears to be factory, and looks good to me . Can someone with just a 1" or 1.5" level with factory upper a arms get a picture of the ball joint angle like the one Musgo posted for a comparision ?

RC’s level is 1.5in but it still apparently caused the same issue. I guess replacing the arm is the only way to fix the geometry, but I don’t know for sure. I would like to see someone’s geo with a professionally installed level, see if it’s still the same. Also some Chevy dealers preload a 1in level on their trucks off the lot. Would like to know where they get their kits

Musgo · October 28, 2020

7 hours ago, ALLSTAR said:

I agree. MUSGO'S AT4 appears to be factory, and looks good to me . Can someone with just a 1" or 1.5" level with factory upper a arms get a picture of the ball joint angle like the one Musgo posted for a comparision ?

Only reason I’m concerned is the truck came with 285/65 20s. So I was worried there was a level the dealer added to do so.

BEnax · October 28, 2020

On 10/26/2020 at 12:59 PM, Mike may said:

The control arms where stock, just ordered ready lift leveling kit with upper control arms designed to change the geometry of the stress on the components especially the control arm and ball joints

Hello I have a 2020 at4 with the 1.75” leveling kit with control arms. On these trucks they recommend control arms with a leveling kit. To keep all the angles right for the cv axel joints etc. I’ve had it in for about 2 months now. Zero problems at all, truck might even ride better. I also have the truck sitting on 22x12 -51 offset with Toyo 33x12.5