Roky
Well-Known Member
- Thread starter
- #91
The Mopar 2” lift.......
I’ve installed over a dozen Mopar lifts over the last couple years on the JL. For whatever reason ( probably anticipating added weight ) the Mopar lift gives more than 2” of lift and they don’t include the parts needed to restore the geometry…
The best way to tell exactly how much lift you get, if you’re able to, is to measure from the top of front axle to the bottom lip of the upper coil spring housing before and after lift, the difference is how much lift you actually get .......
When you get more than 2” of lift your caster is decreased and your axles shift, front to the drivers side and rear to the passenger side. Because everything on the alignment read out doesn’t show anything out of spec, that’s how they justify not adding parts to the lift kit.
Now you can drive it as is on the highway or light trails without issues. But if you’re gonna be off-roading and want it to drive better on the highway then you need to add a few things to the kit, the brand is up to you....
1 - front adjustable track bar to re-center the front axle.
2 - rear track bar relocation bracket if you want to keep factory rear track bar or an adjustable track bar
3 - front lower adjustable control arms to increase your caster ( around 6 or a little more is optimal ) to minimize if not eliminate wandering on the highway.
4 - front lower RK coil spring isolators. This is optional depending on how much spring bow you got and how hard you wheel it, the ones in the kit can collapse.
Some don’t care that things are a little off and are using the kit as is which is fine. There is no real ill effects short term but long term I think the factory lower control arm bushings will wear faster being in a slight bind. Again, this is in more extreme cases.
I have no science to back that up , only a couple guys that came to me a year and a half later with worn bushings. This could also be it’s just the way they use their rig, I don’t know. But I won’t install anymore Mopar lifts if the customer doesn’t have these extra parts with them........
Here’s some pics of a more extreme example........
You can see the axle shifted
this axle was over an inch off...
Here’s a collapsed coil isolator
Again this is just a guideline to what to look for and address if you have some of these issues with your Mopar lift. IMHO, if you do these few things you'll enjoy your lift a lot more............
I’ve installed over a dozen Mopar lifts over the last couple years on the JL. For whatever reason ( probably anticipating added weight ) the Mopar lift gives more than 2” of lift and they don’t include the parts needed to restore the geometry…
The best way to tell exactly how much lift you get, if you’re able to, is to measure from the top of front axle to the bottom lip of the upper coil spring housing before and after lift, the difference is how much lift you actually get .......
When you get more than 2” of lift your caster is decreased and your axles shift, front to the drivers side and rear to the passenger side. Because everything on the alignment read out doesn’t show anything out of spec, that’s how they justify not adding parts to the lift kit.
Now you can drive it as is on the highway or light trails without issues. But if you’re gonna be off-roading and want it to drive better on the highway then you need to add a few things to the kit, the brand is up to you....
1 - front adjustable track bar to re-center the front axle.
2 - rear track bar relocation bracket if you want to keep factory rear track bar or an adjustable track bar
3 - front lower adjustable control arms to increase your caster ( around 6 or a little more is optimal ) to minimize if not eliminate wandering on the highway.
4 - front lower RK coil spring isolators. This is optional depending on how much spring bow you got and how hard you wheel it, the ones in the kit can collapse.
Some don’t care that things are a little off and are using the kit as is which is fine. There is no real ill effects short term but long term I think the factory lower control arm bushings will wear faster being in a slight bind. Again, this is in more extreme cases.
I have no science to back that up , only a couple guys that came to me a year and a half later with worn bushings. This could also be it’s just the way they use their rig, I don’t know. But I won’t install anymore Mopar lifts if the customer doesn’t have these extra parts with them........
Here’s some pics of a more extreme example........
You can see the axle shifted
this axle was over an inch off...
Here’s a collapsed coil isolator
Again this is just a guideline to what to look for and address if you have some of these issues with your Mopar lift. IMHO, if you do these few things you'll enjoy your lift a lot more............
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