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Sloppy rear suspension

Steve M

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So I am curious if anyone else has noticed this, or had this issue. I have a '21 AT4. 5.3. While I know this generation has its short comings, <ahem, ugly dash>, For the most part I like the truck. One thing that annoys the hell out of me, is that the rear seems to get a bit squirrely. I get it, It's an off road suspension compared to my last truck, <2014 Silverado Rally II", but the front seems to handle well, but the rear likes to get a bit sloppy. I want to blame the shocks, but not sure if changing them out will help. I know its not a handling truck, <used to have a lifted 96 bronco. Pig on Handling> Was curious if anyone else had that issue, and if so, what did you do to get rid of it? I plan to keep this truck, so just want to fix the bugs.
 

reverse

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It’s the Rancho shocks, can add a set of Bilstein 5100s to make it feel more planted. This is one of the most common upgrades most everyone does to fix that.
 
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Steve M

Steve M

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Thanks. I kind of figured that, but wasn't sure. Bilstein's were on my "to do list".
 

grover

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Rear dosen't seem planted and acts like it wants to jump out when you hit a bump?

Alot of what I've read on various forums, before and after I purchased my '20 AT4 1500, most replaced the shocks and problem was greatly reduced or went away completely. My rear seemed to jump out and the more I drove it the worse it seemed, didn't feel planted. Alot of suggestions on what to replace them with but settled on what I've used on past vehicles. I went with a set of Bilstein 5100's for the rears. Made a big difference and felt more in control, truck had less than 3,000 miles on it from what I remember. Decided to do the front's around 8,000 miles and went with set of 6112's with the springs as they came with them, just for the sake of I only planned on doing it once so might as well. The OEM fronts weren't as bad as the rears but they did start feeling not work as well as I put on more miles. Once I got them changed over it felt better.

Hope this helps
 
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Steve M

Steve M

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That's what annoys me. Feels like the ass is jumping around. One of my biggest peeves. I just hit 14k on the truck, but it has annoyed me since day one.
 

Duramaximus

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Lots of info on how terrible the Ranchos slop with these trucks. It was one of my first and most noticeable mods done to my truck.
 
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