My manufacturer date is 09/92 it is the V-belt, but O'Reilly has a pump for after 03/92 and the pulley says the same(after or before 03/92) 2 different pumps. There is NO pulley available that I have found for after 03/92.
Thanks. Maybe I am thinking about this wrong? Does the pulley have bearings or only the vacuum pump? That is why I want to replace the pulley also, because either the pulley or vacuum pump is bad- I'm not getting enough vacuum- my braking power isn't as good as it should be. Seems like when I hit the pedal it loses vacuum pressure steadily down to a certain point, or all of it and maybe only my rear brakes are working properly. I'm not sure. I'm trying to figure out how to test that ( if my front brakes aren't where they should be)
There's only one more pick n pull in my area that I haven't checked but in the one I did - not a single 7.3 engine in any vehicle in the whole lot. I read - though I know even on credible sites it's not reliable- that the vacuum pump is specific to the 7.3 and when I look up a new one I see " for 7.3 diesel only" on the description. Maybe they wanted to use a different vacuum pressure? I will figure more out this weekend when I pop the hood. I'm just trying to get it all figured out before because the storms out here give me limited time to work on the truck right now.
The description on that says for trucks built before 04/92 so what now? I think it is the same...i think that anything is there than that pulley is the serpentine type. But you may be right about the leak, I'll find out tomorrow, but I still think I need a new pump--beccause-- it leaks from the 'weep hole'? Maybe it is OK for just a a to b driver but I plan on using it to haul for work so I need things like the brakes to work perfectly.
