The more severe angle of the tie rods from the lift could put more stress on the rack, it would also increase the stress on the tie rod ends, especially the inner tie rod joints, they would be more likely to fail sooner.
If you've never had a tie rod joint fail, but you've had your 2nd steering rack fail, I'd start to get a bit suspicious. I can't say it isn't possible, but its NOT likely.
But for a two inch lift, that just extends the suspension in its range of motion, that increase in stress would NOT be that much, it would NOT likely cause that extreme of a early failures. So maybe the Commander is more susceptible to the slight increase in stress, but if that was true I think we would be seeing more posts about early Rack Failures than we do.
Again, I can't tell you for sure, and NO I don't have a lift, we'll have to wait until those with the RC lift chime in and get a bit of a consensus.
Oh, the Mechanic "claiming" he used the proper fluid can mean different things. Some would pick up a bottle of the wrong fluid and say, "See, it says Power Steering Fluid right on the bottle, of course I used the correct fluid". Some might refer to the label on a bottle of fluid that says it is for all Late Model Chrysler and Jeep vehicles, and it barely meets the 3 specs ago from the 90's for Chrysler vehicles. Some might refer to a TSB stating that MS-9602 is suitable for retrofit PS fluid for all Chrysler vehicles NOT realizing the later spec for the Commander/GC states MS-9602 is NOT suitable and only the newer MS-10838 is suitable.
The MS-10838 I bought for my Commander was totally clear, when I flushed out the old fluid, it came out black, although the new fluid has been in there much longer and is still staying clear. So you can wipe the dipstick on a clean rag, if its pink/red/amber or any color than clear or clear with some suspended dirt making it look blackish, then I would be extremely suspicious it was serviced with the incorrect fluid.
Last edited by Mongo; 09-05-2014 at 05:09 PM.