Well the 7FGCU15 I've serviced since new in 2004 has 27,000 hours now. Never did anything to the brakes, motor, or the propane regulator.. I figure it has burned at least $135,000 worth of LPG. I got better things to do than make up stories and post them on the internet. I'll pull the brake drum next time I service it and take a picture. They traded in the other one with 27,000 hours for a new Yale. The Yale has 4000 hours now but has had trouble and I can tell it will never live like a Toyota.
A forklift with 1700 hours certain doesn't need to be reconditioned so something is up with that. New truck warrentees are at least 2000 hours.
I did a head gasket job on a 7FGCU25 with 15,000 hours this week and when the head was off you could see absolutely no wear in the cylinder bores. All the honing cross hatch was there even on the sides where the piston skirt rides. I did a quick check of the valves and had the head milled flat. Took it off at 8:00, had it at the machine shop at 9:30, picked it up at noon, and the second shift operator drove it away at 3:00.