lone mountain truck leasing Prostar Int. tifton Nationwide

Is it there fault,  they buy 300 hundred trucks from a big company, this company takes poor care of them, Prostar Int. 2009.  i will make a long story , short, i have talked to many other drivers who bought Prostar from them. they have mud flaps with lone mountain on it.  half of the drivers are having the same problems i am, DOC breaks, DPF filter is trashed, front tires go bad because of shocks, and AGR valve breaks , along with the AGR cooler, A/C breaks 3 months after being fixed, i have put 4 compressors in mine in 15 months. 2 by a Dealer that lasted 12 months.  all of this in 15 months of having the truck. $13,000 in first 15 months.  and now my Transmission  is slipping.  

Again i ask is it Lone mountain fault?   they know of all of these problems.   I have had enough, i am giving them back these tuck, they will sell it take a low price. AND SEND ME A 1099 for the different.  i have been put out of my job, BY THIS TRUCK. after 15 yrs of being a owner operator. Prostar Int.  With a Cummins moter are pieces of junk.  Lone Mountain is in bussiness to make money not to fix pieces of junk, even if they knew half of them are crap.  if you are going to buy a truck there stay away from Prostar., i will not put another A/c unit in it, or when this Transmissioin fails, they can have it back,  half the drivers i have spoke with, have these problems,  So is it Lone Mountains Fault?  Stay away from Prostar with a Cummings,