Go CS034RA if your looking for around +2.5" CS034RB for +2"
Quote from Dirk at DPG
From this thread http://www.jeepforum.com/forum/showt...ighlight=happy
"That's a broader question than I wanna post to completely, but here's the down low:
JC1A is now CS034RA
This leaf typically nets close to 3" of lift on a stock XJ.
JC1B is now CS034RB-
This pack is closer to 2" of lift.
We should keep in mind that advertised lift heights do vary a bit. This is true throughout the industry. For example, RE kits usually sit taller than advertised on a stock jeep.
You could put the exact same kit on 3 different jeeps and net 3 different lift heights, due to how each jeep is set up. Another little know fact is that XJ's came with a number of different leaf spring packs over the years. Lift heights and spring rates were not all identical.
There has been some confusion here because ARB has referred to the JC1B as a medium leaf and the JC1A as a HD leaf pack. They both have the same # of leafs, and the leafs are the same thickness. Therefore, with these leafs, the spring rates are basically the same. The reason the JC1A sat a bit taller was simply because they are arched more. To me, that's not HD. HD would mean a higher spring RATE to me. I've had a lot of people call to order OME leafs, and they said they didn't know if they wanted to JC1A or the B, but whichever one was "heavy duty"... Of course, the taller spring would hold more weight at a certain height than the other.
The JC2A and JC2B were the leafs with the straight overload leaf. They were designed for towing and hauling heavy loads. Obviously, the new OME Dakar part#'s are the CS035** series. I usually don't recommend these leafs, so I'm not sure which part#'s correspond to 2" or 3". I don't even have the new part #'s for those leafs listed in my OME books.
OME has also had a #JCXL extra leaf available for their packs. That new part# is
D22XL. These are not the typical aftermarket AAL, which is usually fatter and much more heavily arched than the springs they fit with. While the typical AAL FORCES the flatter pack to arch, creating a conflict within the pack, the OME extra leafs are the same thickness and arch as the OME pack. This is actually a compliment to the pack. These leafs usually add about an inch of lift and a bit of extra spring rate too. They still make for a nice riding pack that flexes well too.
We've built a bunch of different suspension set-ups with a variety of these and other parts for lifts netting anywhere from 2" to 4.5" or so. Applications vary greatly depending on each jeep, how heavy it is, how that weight is distributed, (front & rear) the lift height and ride characteristics desired, and so on.
That's not something that can easily be summed up here- especially considering that every jeep is different. Hopefully, that helps a bit though."