So I am doing my rear diff swap this weekend and am having problem with one part....tis the "t" comming off the main break line....what is the name of this...and anyone have a part number???? Nobody seems to know what it is

 

prop valve
Here are the part numbers:
14089496 1989 1st design: M1.0 tube nut threads (For 1982 - early 1989 applications)
10164112 1989 2nd design: M1.5 tube nut threads (Late 1989 - 1992)

 

i dont think thats what hes talking about. iirc, the t block is part of the hose for stock applications. try having them look up the chassis to rear flex brake line, or just start with brake line, and work from there depending on how smart the people at your parts store are

 

Got it and all is good....:-)

Thanks

 

Sounds like you are right calling it the junction block. The parts people should know what you mean.