Command Trac Dana 30 vacuum line replacement?

[mpace6a]

So, while replacing my horribly rusted out floorboards, I managed to cut one of the vacuum lines that goes to the axle, and I'm trying to figure out if i have to replace all 3 lines, or if i can seperate them and just replace the one i cut? anyone know?

the little doohickey in the red circle is whats holding them together, and near as i can tell it wasnt meant to come off...but i can't be sure, anyone know?

[Pete M]

I would do one of the numerous CAD-elimination plans and never worry about then lines again. :)

[Geonovast]

I would do one of the numerous CAD-elimination plans and never worry about then lines again. :)

 

x1000

 

I would just plug the lines, lock the CAD over, and forget you ever had the damn thing to begin with.

[mpace6a]

You'll have to forgive my lack of knowledge here, but whats CAD? and what exactly was the purpose of the lines to begin with?

[pamike]

theirs a vacuum actuated dissconect on the right side axle shaft. it's not needed and theirs not really any benifit of keeping it functional. you can pull the vacuum motor off of the back of the axle and lock it perminantly so theirs no more lines to deal with. theirs alot of write ups on this just search it up.

[mpace6a]

so bypassing the cad locks the differential?

[Geonovast]

Certainly not. All the CAD is designed to do is keep the front driveshaft and carrier from spinning while driving in 2wd to save gas... which it doesn't do in any measurable amount. The CAD was done away with in the early 90s anyway.

 

viewtopic.php?f=9&t=18415

[mpace6a]

Ahhh, Ok, thank you for the link with the wonderful illustrations :clapping:

Now that I understand, I may just go the extra mile and pull all the lines to get them gone with so i don't have to bother with them again

[Pete M]

just make sure you plug the lines or plug the originating point. don't want a vacuum leak after all. :thumbsup: