Really up to you. These are the facts though.
The ORP package uses the same UCA as the standard truck with a 1" lift in the front. Engineers decided at 1" above stock no change was required to the UCA.
When going to the 2" Mopar kit the UCA are replaced with a higher travel Ball joint. Visually the control arms look identical but the ball joint has an additional 10-15 degrees of freedom. So the Mopar engineers felt a change was needed at 2".
Lastly it kind of depends on how you plan on leveling the front end. There are 2 ways to do it.
1. With a top hat spacer you are making the coil over longer to attain the lift by putting a spacer between the coil over top hat and the frame. The truck rides in the same travel position it would stock but the tie rods and ball joints can be extended an additional 1.25" this additional extension is what causes the ball joint to hit its travel limit and put a lot of wear and tear on it. In this case a UCA swap is a must as Ram is historically known for having upper ball joint failures with leveling kits. If an upper ball joint pops out of its socket this is a catastrophic failure which could result in a horrible accident and death if it happened at high speed.
2. Leveling with pre load. Spacer between spring and top hat or leveling shocks like the 5100, or fox shocks that come in the Mopar kit.
In this case the coilover assembly stays the exact same length as stock. The trucks is now riding 2" higher in its travel. Full extension stays the same as stock and the ball joints and tie rods should still be in their allowable working range. New UCA's would realign the ball joint to be in its neutral position which is ideal, but chances of failure are not nearly as likely as with a top hat spacer. With all that said this how the 2" Mopar kit works yet they still replace the UCA's with an upper ball joint with larger working angle. So you can ask anyone on here and their opinion may be no you don't need it. But the engineers that designed the suspension on these trucks felt 2" or larger needed at the very least a different ball joint than stock. $500 is pretty cheap piece of mind at 70 MPH for a good aftermarket set. Or in your case at 2" you can get the Mopar UCA's that come with the 2" lift kit for like 65 bucks each.
These are the Mopar control arms with links to buy them brand new on ebay.
Right side - 68323530AA
Left Side - 68323531AA
Find many great new & used options and get the best deals for Genuine Mopar Arm Right-Hand-Upper Control 68323530AA at the best online prices at eBay! Free shipping for many products!
www.ebay.com
Find many great new & used options and get the best deals for Genuine Mopar Arm Left-Hand-Upper Control 68323531AA at the best online prices at eBay! Free shipping for many products!
www.ebay.com