PapeCAT

Thanks for the part numbers and Lucky you about the bracket! My motor is a 1991.0 non i/c crossover year. I'm surprised mine didn't have one as well, in this case.

thrashingcows

Jimbo...when you converted your truck to the later IC, rad fan etc....did you change out the throttle bracket as well? If you did maybe you replaced it at that time?

jimbo486

I can't recall if I actually swapped those brackets but it's a possibility that I may have.

Also, as I found out the hard way yesterday, a warning to PapeCat and anybody who decides to use the later, 2-piece vein-type vacuum pumps from '99(?) to '02... The flexible oil supply hose, P/N: 3925100, is TOO SHORT and will not make the run between the oil galley port and pump. I believe that the 2-piece vacuum pumps might be shorter in length than the earlier 3-piece vacuum pumps which have something to do with it but I don't have one of the 3-piece pumps to confirm. Regardless, I used the P/N that showed up on QuickServe using an ESN for a '91.5 model engine. Mind you, a $63.51 hose that I had overnighted from the factory in Indiana so that I would have it on-hand and ready to install with everything else. The only time Cummins has let me down but I'm not blaming them because I'm mixing and matching.

Through Cummins, I had no luck finding the 90* elbow that threads into the oil galley port in the block so I went to a local hose supply and picked up a steel elbow. 1/8" x 27 NPT to whatever diameter hose and either JIC or AN fitting. I couldn't even get 2 threads before the fitting hit the casting of the block. So instead, I will put the straight fitting in the block and 90* elbow in the bottom of the vacuum pump, as opposed to what is shown in the picture. Being that the supply hose is too short, I'll go back to the hose supplier this week and have a hose made that is approx. 2" longer.

That being said, I had to postpone installing the vacuum and PS pump assemblies until I have a oil supply hose on-hand. I continued installing the Redhead steering gear and Borgeson shaft though. That's all buttoned up and left sitting overnight after bleeding the system per Redhead's instructions. So far, no leaks in the system. I'll complete the bleeding process tonight after work and take it for a spin.

PapeCAT

Thanks for the heads up. I got an OEM line from another member, and had it replicated new at my local parker hose and fitting place. It cost 35 bucks for the line with braided stainless etc. I ran into the same issue as you, and used the 90 elbow on the pump and the straight one on the block.

Man, I wish I bought a 2 piece vacuum pump. Maybe I'll return the 3 piece I bought at rock auto and get the 2 piece. Looks nice.

jimbo486

I should've done this initially. Especially since the hose from Cummins is $63! The Cummins line was about 5.5" from one end to the other. I had this one made to 8" for only $17 including the elbow to go with it! The straight fitting is from Cummins. Vacuum and PS will be going in this week.

Nick, just FYI if/when you have a hose made, the straight fitting is SAE 45, 5/16"x24 (45° seat angle).

montanashawn

I am in the process of updating the steering on my 1990 w350. I have a new steering box (redhead) a new updated power steering pump (borgeson 800328) and a new updated vacuum pump (cardone select 90-1309). Thanks to several threads on several sites, most of which you guys have contributed too, or started, I have figured out most of the brackets and acquired them. It appears that my factory original throttle bracket may need to be cut and drilled. I would like to avoid that, and purchase a later year bracket that would bolt up. Anyone know the part number I would be after? Thanks for any help!

maybe368

There are several guys on here that have old parts for these old trucks. Oliver Foster is one of them. Send him a pm. You may want to start your own thread too, it might get more responses.