[redbulljoker69]

So I had once heard that it is bad to go over 2.5" of lift because it hurts the drive train? or powertrain? or something. can someone clarify as to why? i dont understand.
why would a 4" super lift be fine then?

Friend has a 2.75" spacer lift now. And want more lift, just dont want to pay 1800 for super lift.

 

[Matt_]

Spacer kits increase the angles of the suspension and drivetrain components. The steeper the angles, the faster parts wear (balljoints, tie rods, CV axles). Also, steering rack and pinions are susceptible to damage at increased angles... they're an expensive repair. Another reason is down travel... stock, you only have about 3" of down travel in the suspension. So if you put in a 3" spacer lift you will have no down travel which causes a horrible ride (like if you didn't have suspension ) and this also increases wear/tear due to dynamic influences.

The 4" superlift retains stock geometry. That why its safe to lift the vehicle higher With a "proper" suspension system. Just making the strut longer via spacers (or similar) does nothing for the balljoints, tie rods, CVs, steering rack, etc. Generally, anything over 2.5" is not good.

 

[JJSEBASTIAN]

Very nice explanation Matt!

 

[07JeepXK]

Spacer kits increase the angles of the suspension and drivetrain components. The steeper the angles, the faster parts wear (balljoints, tie rods, CV axles). Also, steering rack and pinions are susceptible to damage at increased angles... they're an expensive repair. Another reason is down travel... stock, you only have about 3" of down travel in the suspension. So if you put in a 3" spacer lift you will have no down travel which causes a horrible ride (like if you didn't have suspension ) and this also increases wear/tear due to dynamic influences.

The 4" superlift retains stock geometry. That why its safe to lift the vehicle higher With a "proper" suspension system. Just making the strut longer via spacers (or similar) does nothing for the balljoints, tie rods, CVs, steering rack, etc. Generally, anything over 2.5" is not good.

4 inch lifts also give you new crossmembers to relocate the lower control arms, front differential drop down brackets and longer steering knuckles (spindles) to make up for the lift. So in theory the suspension is at factory like geometry. Unlike a typical 2-3 inch spacer lift.

 

[CommandSystemsGo!]

Cool! Since I've never lifted a vehicle (lowered several fast cars of mine for an aerodynamic drag decrease in the past though) I never thought about the suspension loads and geometry being changed to the point of increased wear and tear...thanks for posting this guys, as this day wears on I was thinking maybe I'd get through it without actually learning something new! I can now say I did learn something new today!

 

[tawoody]

Ditto what Matt said. Nice job

 

[jberg]

So I'm looking at getting a 2" lift... will this wear on the parts you mentioned, just not as much as a 3" or 4" lift?

 

[Oleblue27]

So I'm looking at getting a 2" lift... will this wear on the parts you mentioned, just not as much as a 3" or 4" lift?

If your looking at the Rough Countey 2" spacer lift you'll be fine. Parts WILL wear faster obviously cause your increasing the angles of said parts. But, you'll most likely wear them out long after you sell the jeep.


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