Anybody familiar with these? JKS Manufacturing 6150 - JKS Manufacturing Front Lower Control Arms for 07-13 Jeep® Wrangler & Wrangler Unlimited JK - Quadratec


How do these work? it looks like they adjust there length freely?

 

Great arms, they don't use jam nuts and allow the two sections of the arm to rotate so they don't bind. Clevite bushing on each end gave a very comfortable ride on road. You have to remove one end to adjust which is just by spinning them. I ran them for 2 years on my rig with 37's and 5.5" of lift (too much lift) Sold them and went long arm. Last I looked they were crazy expensive. I would highly recommend them.

 

Right, they can only adjust with 1 end dropped.

Too rich for my blood.

 

Do you think it's worth the extra money to get these over the jspec model?

 

Not sure what the price difference is now. The adjustable jspec are just like a currie or synergy arm using a johnny joint and jam nut. The regular jks arms have no jam nut and flex nice while giving you a more comfortable ride. They are kinda unique like the metal cloak joints are. If the jspec arms are more then a synergy arm was I would just go with synergy. Really arms are arms, look at what they are made of and what end joints they have. Unless you are running an extreme rig you will not tell the difference in any of them.

 

I just can't justify the price, the JKS LCAs are 2x the price of JSPEC arms. I am really happy with my teraflex arms, same idea as the JPECs.

 

I have them front and rear on my Jeep. To me they were worth it, but not cheap. What sold me on them was lack of maintenance compared to a johnny joint style arm. I don't have to grease or rebuild the joints if they ever go bad. Just get oem replacements from the parts store or dealer. Only have to grease the arm itself to keep it from seizing. Plus, the rubber bushings will absorb bumps and vibrations a lot better then polyurethane bushings or metal johnny joints.