Search results

Mine is working fine, no issues so far.

Hopefully you’re just overthinking things…. I haven’t had any issues with mine since posting this but I only used a very thin coating.

Thanks! No, never did find out what the mystery O-ring is for...I even rebuilt both master cylinders for the 2 trucks' Airpacks in the photos, and no clue what that O-ring goes to.

Thanks fellas! I hope this helps, I just did several of these so I had one to use as a model for proper orientation/order. I just completed my edits, so I hope that the information is complete and accurate...if not, please let me know.

This is where I need your help: for the life of me, I am always left with this O-ring and I have no idea where it goes...I've done several of these now, and can't find where this darn O-ring goes.

Remember this orientation/layout carefully! When reinstalling, the new small spring goes in first, then the 4-prong small flat cap, followed by the air slave piston and snap ring. During this step, be careful with the O-ring on the air slave piston; I found that when I had to slightly pull...

Now we can dig into the air slave cylinder housing. Remove the 3 bolts holding the air slave cylinder housing to the body, but BE CAREFUL to not hold the air slave cylinder housing vertical when you remove it...otherwise the upper piston & spring may take off running on you. You should be able...

To remove the end piston, you will need to use roll-pin punch & drive-pin tools. Rest the pushrod against a block of wood or other soft item while you drive the roll pin out & back in, so that you don't mar the pushrod. Once the end piston is removed, there is a small end-cap...

Turning our attention to the body, let's remove the pushrod assembly. It is held in place with a snap ring (a replacement should be contained in your rebuild kit); using your trusty snap-ring pliers, remove this snap ring and discard it. Pull the pushrod assembly out of the body, and be...

Remove the J-pipe; it is only threaded at one end, the other end (that goes into the air slave cylinder housing) is a friction fit, with a small O-ring on the end of the J-pipe that will be replaced by one from your rebuild kit. Once the J-pipe is out, remove the 6 bolts holding the large can...

Since the TMs show where these new-style, short Airpacks are located and how to remove them, I'm only going to focus on what the TMs and other printed literature don't cover. I've searched high and low but haven't been able to come up with any kind of drawing, schematic, or instructions for...