Why different springs left and right?

[USMC-SSGT]

My overland has different spring part numbers left and right in the front. So does essentially every other thread of the 200 I’ve referenced. Doing an AEV 2” spacer lift and want to raise the front end and do rubicon front springs and fox shocks all 4.

The takeoffs I found local are diesel rubicon and share the same part number left and right (377AA.)Does it even matter? Part of me says yes, because manufacturers tend to not just do something for no reason. The other part of me says it can’t possibly make any appreciable difference.
Thoughts?

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[DocMike]

They compensate for the weight of the gas tank, driver etc.

My overland has different spring part numbers left and right in the front. So does essentially every other thread of the 200 I’ve referenced. Doing an AEV 2” spacer lift and want to raise the front end and do rubicon front springs and fox shocks all 4.

The takeoffs I found local are diesel rubicon and share the same part number left and right (377AA.)Does it even matter? Part of me says yes, because manufacturers tend to not just do something for no reason. The other part of me says it can’t possibly make any appreciable difference.
Thoughts?

 

[ShadowsPapa]

My overland has different spring part numbers left and right in the front. So does essentially every other thread of the 200 I’ve referenced. Doing an AEV 2” spacer lift and want to raise the front end and do rubicon front springs and fox shocks all 4.

The takeoffs I found local are diesel rubicon and share the same part number left and right (377AA.)Does it even matter? Part of me says yes, because manufacturers tend to not just do something for no reason. The other part of me says it can’t possibly make any appreciable difference.
Thoughts?

It's been this way since the 60s - cars, too. You should see the pages of spring numbers I have in some parts books I have for 60s and 70s cars.

Also keep in mind that for the gas Rubicon Gladiator, there are at least 3 spring numbers for the front springs. So when you say "Rubicon springs" you have to ask "which ones?"

Higher part number (last three digits) go on the right side.

 

[USMC-SSGT]

It's been this way since the 60s - cars, too. You should see the pages of spring numbers I have in some parts books I have for 60s and 70s cars.

Also keep in mind that for the gas Rubicon Gladiator, there are at least 3 spring numbers for the front springs. So when you say "Rubicon springs" you have to ask "which ones?"

Higher part number (last three digits) go on the right side.

These ones locally are from the ecodiesel. They happen to be the same spring number though left and right.

 

[ShadowsPapa]

These ones locally are from the ecodiesel. They happen to be the same spring number though left and right.

I wonder how stout they'd be under a lighter vehicle - as far as ride............. lift, yes, but at what cost for performance on the road.
I guess you may find out!

 

[USMC-SSGT]

I wonder how stout they'd be under a lighter vehicle - as far as ride............. lift, yes, but at what cost for performance on the road.
I guess you may find out!

That’s a good point. The gladiator argument as old as time. Truly the “solution” is to ride the 2” AEV with the factory rake. If I want lift AND level, spend the $1000+ to buy the proper setup with shocks,springs etc.

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