Hi, I am looking to do my wet belt and check the set up of the rear diff, the diff seems to have excessive backlash which is noticeable when changing gear. There's no whine or noise so at a guess I am wondering if the previous owner has had the input shaft seal replaced and not put it back together with the shims in the correct position. I have found out it was an ex lease pickup working on the HS2 project so has been driving off road through slurry etc hence my theory of input shaft possibly being replaced.
Its a 2021 350 leader ecoblue c/cab with drw.
I am looking at purchasing a 'vin specific' Easy Manual for my pickup and was wondering if anyone would know if the wet belt and rear diff instructions will be in the Manual?
I have emailed Easy Manuals but still waiting on a reply.
Thanks for any info given.

