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Differential not aligned

Julio13
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Julio13 Enthusiast

Julio13

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My differential seems to be 3/4 off to one side in other words if you compare rear side one tire sticks out a little more then the driver side anybody notice this my truck is a 2020 custom trail boss if anybody could measure there’s to see if this is normal

 

 

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Julio13 Enthusiast

Julio13

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Is it your axle or you bed? A lot of people on here complain about misaligned beds.


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No it’s axle


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Thomcat Senior Enthusiast

Thomcat

Posted
Posted

Really........only 3/4" on a mass produced truck?

 

Forget how it looks, what is important is geometry. It's not the distance from fender to tire it is same measurement from the edge of the leaf spring or the shackle to each wheel hub that determines if the rear axle is centralized. And then the wheels on the rear axle must be aligned with the wheels on the front axle otherwise the vehicle will "crab" down the road.

 

Quick and dirty test is to drive straight ahead on a wet surface and observe the tracks left by the vehicle - they must be one tire wide, i.e. the rears exactly overlap the fronts. If wider the axles are not aligned, vehicle is crabbing and front and/or rear axle adjustment and front wheel alignment is required. If axles are aligned but it still "looks" off, you don't shift the axle, you shift the bed and split the difference 3/8" so it "looks" better and live with it......really 3/4" on a Chevy????
 

Julio13 Enthusiast

Julio13

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93a76d9c5e634256789e8f4362e00770.jpg
Passenger side

a2b70f74d4d5cace0eea23c0ba656caa.jpg
Driver side this measurements are against the frame


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Jav_eee Enthusiast

Jav_eee

Posted
Posted
93a76d9c5e634256789e8f4362e00770.jpg

Passenger side

 

a2b70f74d4d5cace0eea23c0ba656caa.jpg

Driver side this measurements are against the frame

 

 

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First things first: you need to use the same lug on the tire to get your measurements. Can’t measure on one that runs out the whole width of the tire against one that doesn’t. They need to be the same.

 

2nd: looks like it might be off by half an inch.

 

I don’t know why people look at these things. I haven’t looked at the bed or my rear axle because I don’t want to know if it’s off

 

 

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newdude Senior Enthusiast

newdude

Posted
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3 hours ago, Julio13 said:

 

My differential seems to be 3/4 off to one side in other words if you compare rear side one tire sticks out a little more then the driver side anybody notice this my truck is a 2020 custom trail boss if anybody could measure there’s to see if this is normal

 

 

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The only proper way to measure this will be with the wheel off and using a level against the face of the axle shaft.  Or have the alignment checked as something could show up in the thrust angle measurements. 

 

Your tires are creating too much variance here.  Is the truck driving funny or anything?  I guess I'm not sure what the worry is.  

Julio13 Enthusiast

Julio13

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I’m measuring of the frame not driving bad at all but that’s why I’m asking if this is same on other trucks don’t need tire wear or other problems down the road


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  • 1 year later...
seamus2154 Enthusiast

seamus2154

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You are clearly measuring it differently. There are two different lugs on the tire tread. They are staggered. You are measuring one in and one out...your not measuring the same outside lug. But as other have explained, you need to measure the axle not tires. I dont think you have any issue. An alignment shop will tell you immediately.

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