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Originally Posted by bamboo

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Can I Just order the 99+ kit does it Include two electric pumps??
Or must I buy a Bean's type fuel system First??

The Frybrid OBS system uses (2 or 3) 3-way valves and is very similar to all of their 'conventional kits'. The Frybrid 99+ system IS the DFA V3 module plus some Frybrid stuff - including the controller.

I think the DFA system for OBS trucks ditches the mechanical (stock) fuel pump and adds an electric pump for diesel - as well as converts fuel system to 'deadheaded' similar to the later-model PSD's. Because of the extra pump and plumbing, the DFA kit for OBS is more $$ than the late-model 7.3's. This DFA kit will be 'all inclusive' (down to the last nut/bolt).

All of that said, I think the DFA system for OBS trucks is a superior design for VO conversion with the simplest operation and the parts are all OE quality. The best thing about this design is redundant fuel systems - you can nearly always drive home 'on the other fuel' if a pump fails, etc. BUT.... Frybrid claims the OE fuel pump on OBS truck 'will pump gravel' and it is not very expensive to replace. Their OBS system will also be all inclusive, but less expensive since (3) 3-way valves are ALOT less $$ than (1) electric fuel pump.

A note about the 'controllers': The DFA controller is fully automatic - with the system turned on, you get in and drive and when temps are attained, it automatically switches to VO. When ya get where yer going, turn off the ignition and the truck continues to run and go thru purge sequence as you walk away. The Fyrbrid controller also auto-switches to VO, but purge requires you press a momentary switch and wait until the indicator lites tell you its OK to shut down (mine is set to 20secs). This can be done while driving and we usually hit the button at the end of our (long) driveway. If you forget, there is an alarm that reminds you to purge when key is turned off (simply re-start and hit the button). Then there's my F350 which is 100% manual! I have never fogot to purge, but MANY times I drove several miles (or more) on DIESEL when I coulda been burning VO...

If the 'Beans system' you are talking about is the deadhead elimination kit, it is not necessary on OBS trucks because they are not deadheaded stock. FWIW, the 'flow thru' or non-deadheaded conversion is WAAAAAAY overated. The hard-core OBS guys were all frustrated when Ford changed the design on the late-model 7.3's and developed 'kits' to 'make'em like the old days'. IMHO, this 'mod' is as ridiculous as the zoodad mod. Beware of testimony from people who spent their hard-earned money on such systems - they have to justify their investment.