58GreenMackB Posted September 23, 2017 Share Posted September 23, 2017 Hi all. I'm in the process of upgrading my original brakes to a 3030 spring brake chamber. My question is the difference between the various types. I've seen chambers ranging from $50 all the way up to $200 on Napa's website. I was curious what the differences are for the price? Also does anyone have recommendations for good ones to buy for the upgrade? As always, thanks for everyone's input! Quote Link to comment Share on other sites More sharing options...
j hancock Posted September 25, 2017 Share Posted September 25, 2017 Have used Black Max. $55-60 from a Mack Service Dealer. On a hobby truck with no issues. Quote JimIt doesn't cost anything to pay attention. Link to comment Share on other sites More sharing options...
terry Posted September 25, 2017 Share Posted September 25, 2017 On 9/23/2017 at 5:30 PM, 58GreenMackB said: Hi all. I'm in the process of upgrading my original brakes to a 3030 spring brake chamber. My question is the difference between the various types. I've seen chambers ranging from $50 all the way up to $200 on Napa's website. I was curious what the differences are for the price? Also does anyone have recommendations for good ones to buy for the upgrade? As always, thanks for everyone's input! Don't know what kind of chambers you now have, but the 30/30's might be to big to clear. terry Quote Link to comment Share on other sites More sharing options...
58GreenMackB Posted September 26, 2017 Author Share Posted September 26, 2017 Thanks for the input. The original chambers on the truck were type 30, but did not have the spring brakes. Quote Link to comment Share on other sites More sharing options...
Ezrider Posted October 28, 2017 Share Posted October 28, 2017 as far as i know the only difference in a 30/30 is long stroke or short. id ask if they have both the 50 and the 200 dollar one in stock and see if maybe one seems to be made better than the other if not id save my money and go cheaper. its been a while sense i have changed a entire chamber i just do half cans or change the diaphragms until the bottom of them rusts out. 1 Quote Link to comment Share on other sites More sharing options...
terry Posted October 28, 2017 Share Posted October 28, 2017 when I had my own truck I couldn't the diaphrams I put in the service and park side of the can, now all they know is replace the whole chamber, nobody rebuilds anything anymore. terry 1 Quote Link to comment Share on other sites More sharing options...
Ezrider Posted October 28, 2017 Share Posted October 28, 2017 (edited) you can still get the service break diaphrams, there like under 5 bucks to fix a service break leak. the spring break side is "non user serviceable" but you can still buy half cans to fix a spring break leak a lot of places don't stock them anymore but some still do and they can be ordered anywhere if your not in a hurry cause most people now days just change the entire can. i don't replace the entire cans cause i am lazy and cheap. its a lot easier to not have to mess with frozen clevis pins and cuting the rod and unbolting the chamber. to replace a service break diaphragm literally takes about 5 mins in a parking lot including digging the tools out of the jockey box. about 2 mins longer for a half can cause you have two air hoses to disconnect and re connect. i have bought a new can before took it apart and only installed the back half on my trailer when i had a spring break leak pop up away from home and where i stopped didn't stock half cans, and i didn't want to deal with trying to get the clevis/pins apart and trying to cut the rod to length without power tools/ torch available. Edited October 28, 2017 by Ezrider 1 Quote Link to comment Share on other sites More sharing options...
58GreenMackB Posted October 28, 2017 Author Share Posted October 28, 2017 I went to Watt's on this and they straightened me out on what all I needed. Got a short stroke 30/30 chamber and was lucky enough to get the original clevis yokes off the old Type 30 chambers. Another question. Pictured below are my front brakes before I got them relined and new springs. What tool do you use to put the springs on? I have seen a couple s-cam tools, but they don't seem like they'd work with these types of shoes. I do not want to spend money on things that won't work! Thanks for all the input! out Quote Link to comment Share on other sites More sharing options...
blackdog2 Posted October 29, 2017 Share Posted October 29, 2017 Roto chambers lot more clearance $$$$ Quote Ed Link to comment Share on other sites More sharing options...
57 bcr Posted October 29, 2017 Share Posted October 29, 2017 When I bought the BCR,it already had 2 30/30 chambers on it with a toggle valve. I changed the toggle valve to a PP1 parking brake valve . The chambers have been trouble-free so far and clearence has not been an issue. I have been warned that the spring pressure of the parking brake chambers may be too much for the old spiders. So far,so good. Definitely not a good match for aluminium spiders,though. Being a B -81, I would highly doubt, you would not encounter that problem. Used Midland-Berg and Bendix air line schematics sheets to route the system. Not a difficult job and we'll worth it in the "peace of mind" department. Springs go on easier with the shoes backed off all the way and I have used every thing from a tapered lineup punch/crows foot to a home made tool made of a piece of 5/16" round stock win groove cut in near the end of it , to hook up the return springs. Good luck on your project. Al Quote IF YOU BOUGHT IT, A TRUCK BROUGHT IT..AND WHEN YOU'RE DONE WITH IT, A TRUCK WILL HAUL IT AWAY!!! Big John Trimble,WRVA Link to comment Share on other sites More sharing options...
6368 Posted November 4, 2017 Share Posted November 4, 2017 On 10/28/2017 at 9:38 PM, blackdog2 said: Roto chambers lot more clearance $$$$ Yeah and a lot of confused looks when you try and get one at your local parts place. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.