Loud Engine Noise problems of the 2008 Dodge Ram 1500

I was driving vehicle and out no where the vehicle started shaking engine turn off with no warning lights or check engine light come one brakes where hard to apply and steering was hard was able to coast vehicle to gas station and call my husband. He met me there and engine was smoking white smoke. My husband try to start vehicle but it would not come one. We tow the vehicle to the house and call warranty. The advise us to take vehicle to mark Dodge in lake charles louisiana, there we spoke to service advisor sam morrison. At this point we left vehicle there for repairs to be done, they replace the engine provided by the warranty company/ lkq. The vehicle spend a total of 28 days for this repair. 2nd occurrence happened 12/2/14 same thing no sings from engine or warning lights, they also replace the engine due to engine been damage internally this time less than 5000 miles since first engine been replace. Mileage at this time was 119,599. It took the dealer 45 days to repair vehicle this second time. 3rd time engine fails this time started making a loud noise and stop vehicle right away this time just over 5000 miles at 125,654. This time they also replacing the engine too and hour vehicle has been at the,dealer for 54 days and vehicle is not repair yet. We bought this vehicle 6/3/13 with 93,111 miles on it we had own the vehicle for 2 years and 2 months right now. The first year vehicle was good and reliable but 2nd year vehcicle has been dangerous to me and my family.

I was driving in the middle lane of traffic at 7o mph when my 4wl lite flashed,I heard a loud bang and my truck jerked violently, I thought I had been rear ended. My truck immediately slowed down to 30mph right after the loud noise. I then had to get across two lanes of speeding freeway traffic to avoid an accident or worse. After I made it to the shoulder of the road and calmed my nerves, I did damage assessment and discovered that my truck had shifted itself into four wheel low at 70 mph. I limped my truck home, stuck in four wheel low, called a tow truck and took it to my Dodge dealer. Almost two years later and numerous trips back to various dealerships to get this warranty work fixed, and out thousands of dollars the problem has never been fixed and Chrysler considers the case closed. I'm afraid now after this incident to take my truck on the freeway as I feel it is not safe for me or the drivers around me. Next time I may not be so lucky.