Last June I had the 8K IS installed and it was $3700.00 i believe, add the disk brake conversion, and I believe that bumps it up by $2,000.. or so.??
Some on here have had all done at once and may be better to comment on the cost...
But all will agree that it's worth every penny...They are located in Elkhart Indiana
2020 3991RD with-
17.5 Goodyear 114's , Titan Disc brakes, MorRyde 8K IS, Onan 6.5..