zf ford 5 speed adapter to 5.9 cummins and 1988 zf 5 speed. I really don't know a price to put on these so don't beat me for not pricing them. ve cummins runs good hooked to them. If you buy both the 1988 f450 comes with them and you can drive it on a trailer. I'm guessing 1750 takes it all. The cab has had the back cut out of it.