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Is the RC level kit safe for Traill boss?

Jmccracken1214
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Chips Enthusiast

Chips

Posted
Posted
21 hours ago, Jav_eee said:

 


You’re right. I could’ve swore I saw a similar warning with the 1.75” kit. It’s crazy that only .25” more height requires that warning.


Sent from my iPhone using Tapatalk Pro

 

 

Sometime a little goes a long way. A 1/4” on a taper or angle over a distance could end up being significant . 

 

Thats why I called motofab, fabtech readylift and asked some questions.

 

According to motofab if you do a lower spacer its safer as you do not run into ball joint angle problems at full droop.

Now a top spacer is not ideal on these trucks and even the bottom spacer they are recommending 1”. Hence why they arent offering options for taller levels.

 

My thoughts are Ready lift is doing the max bottom spacer which should be comparable to the motofab in dimensions , but its the additional top spacer which is causing the issue of ball joint angle at full droop.

This is why they include uca in the kit.

 

So in summary if you went to increase your front end clearance by 1”, it would be nearly level. You could go with the motofab spacer which is easier and quicker to install and less costly.

 

Motofab stated the 1” spacer in the front maintains GM tolerances for both ball joint and cv angles. So just another avenue , some might want more height than the 1”.

Although the motofab lifts a full true 1” and the ready lift I believe is called out as 1.75 but actually does 1.5. So its not far off.

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BetaX
BetaX

I would not level a TB/AT4 without new control arms.  Someone recently had a UCA failure with 2.5" (non TB/AT4) either on here or FB.   Could have been a different root cause, but seems

Jav_eee
Jav_eee

Well I guess you don’t need to if you don’t mind your balljoint breaking while going down the road and then having to replace other parts along with the UCA. Your truck, your choice. Sent from my

Jav_eee
Jav_eee

I didn’t like mine (balljoint angle) and I saw a post where someone’s balljoint broke and required CV axle replacement as a result. Rock on indeed!     Sent from my iPhone using Tapatalk Pro

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Coles5515 Enthusiast

Coles5515

Posted
Posted

So what is the concenous on all the leveling kits for TB’s? I was leaning toward the Ready Lift 1.75” with the new UCA’s but now I’m unsure. This truck will be pretty much a pavement pounder and maybe a few times into the woods to drag out a bear or deer. 

Chips Enthusiast

Chips

Posted
Posted

So the the Trail boss factory lift entails the following.

 

Mechanical 

Different CV shafts, new front impact horn lowering adapter, taller front struts, longer rear shocks, rear spring spacers, taller jounce bumper mount, u-bolts/nuts, and longer reach bottle jack. 

 

lapoolboy Senior Enthusiast

lapoolboy

Posted
Posted
1 hour ago, Chips said:

So the the Trail boss factory lift entails the following.

 

Mechanical 

Different CV shafts, new front impact horn lowering adapter, taller front struts, longer rear shocks, rear spring spacers, taller jounce bumper mount, u-bolts/nuts, and longer reach bottle jack. 

 

Correct.  But the bottle jack was the EXACT same part number and reach as the stock jack that came in my LTZ.

Chips Enthusiast

Chips

Posted
Posted
9 minutes ago, lapoolboy said:

Correct.  But the bottle jack was the EXACT same part number and reach as the stock jack that came in my LTZ.

The main thing to look at here is the CV shafts. They are different on the Trail boss and AT4 then a standard 1500

Chips Enthusiast

Chips

Posted
Posted
1 hour ago, Jmccracken1214 said:

I bought the motofab 1” spacer last night. Excited to get the front up a little bit more than it is currently.

 

whats the largest tires I can run on the factory 18’s without issue?

Ive been scouring for info on this. So far Ive found that on the Trail Boss, 295/70/18 will work. Seems its the wider tires that present an issue, 12.5” for example which are easier to find in more options may rub.

Jmccracken1214 Enthusiast

Jmccracken1214

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Sucks with the 295’s that there aren’t a lot of options, I’ve seen some on here running 35’s in stock wheels, but then read some can’t.

 

had an offer for $450 for my factory duratracs with 6600 miles on them. Is that fair?

Chips Enthusiast

Chips

Posted
Posted
2 hours ago, Jmccracken1214 said:

Sucks with the 295’s that there aren’t a lot of options, I’ve seen some on here running 35’s in stock wheels, but then read some can’t.

 

had an offer for $450 for my factory duratracs with 6600 miles on them. Is that fair?

Im in Canada, I have 1000-1100 miles on mine. Only because I took a 600 mile trip on the highway. Im going to post mine for 800 canadian. I think they are 3-325 a tire new plus tax and rubber fee etc.

 

Im someone offers 700 I would consider it for me. 450 us is about 600-625 canadian atm. To give an idea.

JeremyW426 Enthusiast

JeremyW426

Posted
Posted
On 8/13/2020 at 8:43 PM, Chips said:

 

This is incorrect , its not a leveling kit on the trailboss , its a lift. And the UCA on the trail boss are not the same as ones on a regular 1500, so they have already compensated for any ball joint angle from the factory. You are just leveling the front end , there are 1” levels for the TB that have  nearly 0 effect on ball joint angle so no need to change UCA. 

 

But to each there own. People have done the level with UCA and experienced failures lol, bad installs are bad installs . 

This is false. The upper controls arms for both the trailboss and the standard height 1500's are exactly the same part number as looked up by VIN numbers in GM's parts catalog. As well, GM offers the factory lift as an accessory package that also DOES NOT include control arms. 

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Chips Enthusiast

Chips

Posted
Posted
17 minutes ago, JeremyW426 said:

This is false. The upper controls arms for both the trailboss and the standard height 1500's are exactly the same part number as looked up by VIN numbers in GM's parts catalog. As well, GM offers the factory lift as an accessory package that also DOES NOT include control arms. 

 

Yes its the CV that is replaced on the Trail Boss vs standard 1500. The premise remains the same its not simply a leveling kit. 

Fsu96 Enthusiast

Fsu96

Posted
Posted
On 8/16/2020 at 2:42 PM, Jmccracken1214 said:

I bought the motofab 1” spacer last night. Excited to get the front up a little bit more than it is currently.

 

whats the largest tires I can run on the factory 18’s without issue?

Any updates on the 1”? I’m considering the same. I currently have 35x11.5x20 without level

Jmccracken1214 Enthusiast

Jmccracken1214

Posted
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Posted (edited)
7 minutes ago, Fsu96 said:

Any updates on the 1”? I’m considering the same. I currently have 35x11.5x20 without level

Nope, got a tracking # today but hasn’t updated yet. Hopefully I’ll have it by the weekend and have it on the weekend after. I’m going to put it on myself. Doesn’t look hard at all. 

Edited by Jmccracken1214
Fsu96 Enthusiast

Fsu96

Posted
Posted (edited)
1 hour ago, Jmccracken1214 said:

Nope, got a tracking # today but hasn’t updated yet. Hopefully I’ll have it by the weekend and have it on the weekend after. I’m going to put it on myself. Doesn’t look hard at all.

So the verdict is that the 1” block is safe? I talked to my dealership and they use a rough country 2” that goes above the strut. It’s $900, takes all day to install and yields 1.5”. 

 

Did you order the gmc 1” or at4 specific 1”? Motofab told me they are the same thing but the at4 designation is $3 more

Edited by Fsu96

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