Thought I'd let everyone know that the hydro units on 2000-04 (not certain on the years, mine was from an 02) F250SD will work relatively easily on our IDI's...
Fab a bracket that gaps the unit from the firewall, I think it was 1.5". All I did was sacrifice my old vac unit to fab the bracket, cut the bolts off the hydro, drilled new holes in the hydro bracket and vac booster bracket. Then I attached the hydro to the bracket by 3/8" grade 8 bolts with washers used to space the bracket from the firewall. I think I used about 40 washers. Just make sure you find the proper angle of the actuation rod when fitting everything.
Get the PS unit and both high pressure lines from the 2000-04 F250SD.
The line that runs from the booster to the gear needs to be modified, all I did was cut off the end of the hose that runs to the gear, then put a double flare on the end (which is what ford used) - and I used the fitting end from the old hose, the one that came with the hose is a hair too long to work properly.
The MC from the IDI will not fit without grinding the mount holes, and adding a spacer for the plunger - I just used the Super Duty MC that came with my salvage unit.
I'm still troubleshooting my install, pedal return is a bit slow. I'm almost certain I have restricted return flow, I may rebuild the reservoir and look for clogged screens. 3 quarts of PS fluid flushed out and the fluid is still dirty. I haven't hooked up the MC yet either, so perhaps a lack of resistance from the MC is the cause. Time will tell.
On a side note, if you plan to do wheeling with one - I'd invest in an axillary cooler and axillary reservoir. The fluid gets VERY hot when working these units hard, and the thermal expansion can force the pedal down if you are overfilled. The axillary reservoir also keeps the return backpressure down so the brakes stay responsive.
Thats all I can think of for now, in all I spent 150 on the whole setup. Hopefully this helps others who don't have lots of resources to get a relatively rare F450 setup that will bolt in.
Fab a bracket that gaps the unit from the firewall, I think it was 1.5". All I did was sacrifice my old vac unit to fab the bracket, cut the bolts off the hydro, drilled new holes in the hydro bracket and vac booster bracket. Then I attached the hydro to the bracket by 3/8" grade 8 bolts with washers used to space the bracket from the firewall. I think I used about 40 washers. Just make sure you find the proper angle of the actuation rod when fitting everything.
Get the PS unit and both high pressure lines from the 2000-04 F250SD.
The line that runs from the booster to the gear needs to be modified, all I did was cut off the end of the hose that runs to the gear, then put a double flare on the end (which is what ford used) - and I used the fitting end from the old hose, the one that came with the hose is a hair too long to work properly.
The MC from the IDI will not fit without grinding the mount holes, and adding a spacer for the plunger - I just used the Super Duty MC that came with my salvage unit.
I'm still troubleshooting my install, pedal return is a bit slow. I'm almost certain I have restricted return flow, I may rebuild the reservoir and look for clogged screens. 3 quarts of PS fluid flushed out and the fluid is still dirty. I haven't hooked up the MC yet either, so perhaps a lack of resistance from the MC is the cause. Time will tell.
On a side note, if you plan to do wheeling with one - I'd invest in an axillary cooler and axillary reservoir. The fluid gets VERY hot when working these units hard, and the thermal expansion can force the pedal down if you are overfilled. The axillary reservoir also keeps the return backpressure down so the brakes stay responsive.
Thats all I can think of for now, in all I spent 150 on the whole setup. Hopefully this helps others who don't have lots of resources to get a relatively rare F450 setup that will bolt in.
