[Alex Everett]

Those are availiable on most any Brand of truck rated 350/3500 series and above, as well as most handicapped vans, Large Suburbans, and some Cab-Over Isuzu industruial road trucks. As mentioned in previous posts here, you need the P/S pump along with the booster from the donor vehicle. Hose mods will allow connection to your existing power steering gearbox/R&P.

[veperformance]

You may also find racing parts adapted for you vehicule that will work quite well and eliminate the extra motors and associated power drain and as a bonus you save weight and also recuperate some space.