l1tech

You mention that the battery tests good. How did you test it and what were the results?

Both 6.2's were pre 2019 so my bad there. I have a close friend that used to work for me that is a Gm tech and he tells me that the DFM motors are experiencing the same lifter failures. AFM and DFM are realistically the same thing with the only real difference being that DFM has the ability to cancel any cylinder and AFM can only cancel 4 cylinders. Other than that you still get the same failures.

I've replaced lifters and cams on these with miles as low as 50k and as high as 160k. A few months back I had 2 6.2's in the shop at the same time for lifters and cam, one had ~75,000 miles and the other was pushing 120k. The funny thing is that on both of these neither had a failure on an AFM cylinder. I had a 5.7 Ram in the other day with 48,000 miles that need lifters and cam.

Old post I know but if you haven't gotten this fixed yet the problem is with the caster. Have the caster set to .5 higher on the right vs the left and you should be ok. They can also match the camber on the right to be the same as the left.