air bags hitting the bump stops!!!!! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**michael bustamante** · 09-14-2009, 06:38 PM

I just added front air bags (dominator 2600) in the front end and at the same time swapped out to 72 control arms and hub assy`s for disk brake conversion. Now my bags are hitting the bump stop mounts on the lower control arms when deflated. have you guys run ito this before? I thought I did all my research before tackling this but I never read about this.
Am I gonna have to cut these off or is the bag not sitting right in the lca cup or??????

*Shane* · 09-14-2009, 06:57 PM

yeah ... most folks cut the bump stop mount off the lower a-arm.

**michael bustamante** · 09-14-2009, 06:59 PM

dang man!! nowI gotta see about removing that lca again to cut it off. its always something

bw4sale · 09-14-2009, 07:50 PM

Actually, I asked here several months ago if I needed to cut mine off and the answer I got was a resounding no. Go figure. Mine's not back together yet to see how it works.

**michael bustamante** · 09-14-2009, 07:54 PM

theres a downward bend at the bump stop mount that the bag hits and it doesnt look like the bag is catching on the metal but rather resting on it. Ill take a pic for you guys and post it in the morning.
All input helps guys!!!

The Big Green · 09-14-2009, 08:16 PM

Yep, no bumpstops here.

**lolife99** · 09-14-2009, 08:27 PM

Cut it off while its on the truck. A sawzall or a grinder with a cut-off wheel will work. I usually leave the steering stop in place. Some people take the entire bracket off.
Then grind any sharp edges smooth.

The Big Green · 09-14-2009, 08:28 PM

Are you laying that thing out, or plan to? That's the same bags as me, and they are HUGE!! I had to cut, and keep cutting lol to get it to lay flat.

The Big Green · 09-14-2009, 08:30 PM

I've got soo many rides I forget, but don't these trucks front bumpstops just pull out? From on the truck, can't you grab and pull?

Primer70 · 09-14-2009, 08:35 PM

I take the bump stop brackets off too.

**kev2809** · 09-14-2009, 09:03 PM

ive got the same bags and will be putting them in within the next month or so. if you take the old ones off, can you put a smaller one in there or will those get in the way too? michael bustamante, can you post some pics of hit hitting?

dznucks · 10-23-2009, 07:18 AM

michael , did you ever get some pics?

i know this is an older thread but i am about to encounter the same problem on my '69 and was about to post a similar question.

I have stock control arms and i am going to use dom 2600's. it looks like the bags might hit the hard bump stops and it looks like i need to remove them to get it to lay out. Is this the case?

fiddy9apache · 10-23-2009, 07:32 AM

i would remove the bumpstop and bracket. ive had to do it on all my static dropped trucks.

DZL1 · 10-23-2009, 09:14 AM

I cut mine off. I had always heard that you have to cut them off. I'm running Slams RE-7's and supposedly they have an internal bump stop.

DZL1.

dznucks · 10-23-2009, 09:31 AM

I guess i am going to need to see how low its going to with the bags in.

i am running 2.5 drop spindles.

**michael bustamante** · 10-23-2009, 09:36 AM

Quote:

Originally Posted by dznucks

I guess i am going to need to see how low its going to with the bags in.

i am running 2.5 drop spindles.

Heres the pic I got. As you can see, Its pretty obvious the bump stops gotta go. I ended up cutting them off with a sawzall and grinding down smooth.

DZL1 · 10-23-2009, 01:49 PM

Heres a pic of mine:

DZL1.

**kev2809** · 10-23-2009, 03:33 PM

I cut mine off all the way..haven't hit the road in yet yet and probably won't until next year. u guys gonna run any bumpstops?

fiddy9apache · 10-23-2009, 03:42 PM

dzl1 how do you like your slams? i notice you arnt running shocks, hows the ride?

dznucks · 10-23-2009, 08:03 PM

thanks for the pics. thats exactly what i needed to see.

how low can you go like that?

i am planing on running some kind of bump stop. dont know what yet

mycool72 · 10-23-2009, 08:44 PM

No bumpstops for me, they will have air in them when in motion. Stock lcas with plates and cups wasn't very low at all on my truck.

lotik · 10-23-2009, 08:59 PM

Quote:

Originally Posted by fiddy9apache

dzl1 how do you like your slams? i notice you arnt running shocks, hows the ride?

You have to run shocks. The bag itself is just a spring. Just think about taking the shocks off a coil spring truck and how it would ride.

DZL1 · 10-24-2009, 12:07 AM

I am running shocks. you just cant see from the angle picture was taken. I like my slams very much, no complaints. One other thing, I also had to cut about 3/4 of an inch of the ends of the front sway bar. when aired out, the ends would rub on the bag.

Hey Michael Bustamante, I dont see a sway bar on yours?

DZL1.

Twisted78SS · 10-24-2009, 01:27 AM

Cut mine off, and I am running upper and lower plates from jlaird here on the board.

scotts62 · 10-24-2009, 09:29 AM

I used a spot weld cutter an drilled the bracket welds out and used a air hammer to knock the bracket of then ground the control arm smooth.

09-14-2009, 06:38 PM	#1
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,814	air bags hitting the bump stops!!!!! I just added front air bags (dominator 2600) in the front end and at the same time swapped out to 72 control arms and hub assy`s for disk brake conversion. Now my bags are hitting the bump stop mounts on the lower control arms when deflated. have you guys run ito this before? I thought I did all my research before tackling this but I never read about this. Am I gonna have to cut these off or is the bag not sitting right in the lca cup or?????? __________________ 1967custom

09-14-2009, 06:57 PM	#2
Shane Account Suspended Join Date: Jun 2000 Location: over yonder Posts: 14,270	Re: air bags hitting the bump stops!!!!! yeah ... most folks cut the bump stop mount off the lower a-arm.

09-14-2009, 06:59 PM	#3
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,814	Re: air bags hitting the bump stops!!!!! dang man!! nowI gotta see about removing that lca again to cut it off. its always something __________________ 1967custom

09-14-2009, 07:50 PM	#4
bw4sale Registered User Join Date: Sep 2006 Location: Hendersonville, TN Posts: 1,528	Re: air bags hitting the bump stops!!!!! Actually, I asked here several months ago if I needed to cut mine off and the answer I got was a resounding no. Go figure. Mine's not back together yet to see how it works. __________________ BRENT -'68 Stepside Project -'98 Z71 Daily Driver -Enough extra parts to build another truck and a half

09-14-2009, 07:54 PM	#5
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,814	Re: air bags hitting the bump stops!!!!! theres a downward bend at the bump stop mount that the bag hits and it doesnt look like the bag is catching on the metal but rather resting on it. Ill take a pic for you guys and post it in the morning. All input helps guys!!! __________________ 1967custom

09-14-2009, 08:16 PM	#6
The Big Green Registered User Join Date: Oct 2007 Location: Fort Smith,AR Posts: 1,305	Re: air bags hitting the bump stops!!!!! Yep, no bumpstops here.

09-14-2009, 08:27 PM	#7
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,682	Re: air bags hitting the bump stops!!!!! Cut it off while its on the truck. A sawzall or a grinder with a cut-off wheel will work. I usually leave the steering stop in place. Some people take the entire bracket off. Then grind any sharp edges smooth. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 Last edited by lolife99; 09-14-2009 at 08:27 PM.

09-14-2009, 08:28 PM	#8
The Big Green Registered User Join Date: Oct 2007 Location: Fort Smith,AR Posts: 1,305	Re: air bags hitting the bump stops!!!!! Are you laying that thing out, or plan to? That's the same bags as me, and they are HUGE!! I had to cut, and keep cutting lol to get it to lay flat.

09-14-2009, 08:30 PM	#9
The Big Green Registered User Join Date: Oct 2007 Location: Fort Smith,AR Posts: 1,305	Re: air bags hitting the bump stops!!!!! I've got soo many rides I forget, but don't these trucks front bumpstops just pull out? From on the truck, can't you grab and pull?

09-14-2009, 08:35 PM	#10
Primer70 Superbad Join Date: Mar 2007 Location: Pittsburg, CA Posts: 153	Re: air bags hitting the bump stops!!!!! I take the bump stop brackets off too.

09-14-2009, 09:03 PM	#11
kev2809 low n' slo Join Date: Mar 2009 Location: rosenberg, texas Posts: 5,133	Re: air bags hitting the bump stops!!!!! ive got the same bags and will be putting them in within the next month or so. if you take the old ones off, can you put a smaller one in there or will those get in the way too? michael bustamante, can you post some pics of hit hitting? __________________ 67 1/2 ton Suburban - Project DRGNWGN. Build thread -_--_--_ _________ _--_-_ -/____\|__\|__\__ ,.,,,.,.,,.,\|_O _______ O_] Last edited by kev2809; 09-14-2009 at 09:04 PM.

10-23-2009, 07:18 AM	#12
dznucks Registered User Join Date: Feb 2006 Location: Smyrna, Ga Posts: 1,647	Re: air bags hitting the bump stops!!!!! michael , did you ever get some pics? i know this is an older thread but i am about to encounter the same problem on my '69 and was about to post a similar question. I have stock control arms and i am going to use dom 2600's. it looks like the bags might hit the hard bump stops and it looks like i need to remove them to get it to lay out. Is this the case?

10-23-2009, 07:32 AM	#13
fiddy9apache Registered User Join Date: Aug 2009 Location: ftw tex Posts: 682	Re: air bags hitting the bump stops!!!!! i would remove the bumpstop and bracket. ive had to do it on all my static dropped trucks.

10-23-2009, 09:14 AM	#14
DZL1 One day..... Join Date: Aug 2008 Location: Ocala, FL. Posts: 701	Re: air bags hitting the bump stops!!!!! I cut mine off. I had always heard that you have to cut them off. I'm running Slams RE-7's and supposedly they have an internal bump stop. DZL1.

10-23-2009, 09:31 AM	#15
dznucks Registered User Join Date: Feb 2006 Location: Smyrna, Ga Posts: 1,647	Re: air bags hitting the bump stops!!!!! I guess i am going to need to see how low its going to with the bags in. i am running 2.5 drop spindles.



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10-23-2009, 01:49 PM	#17
DZL1 One day..... Join Date: Aug 2008 Location: Ocala, FL. Posts: 701	Re: air bags hitting the bump stops!!!!! Heres a pic of mine: DZL1. Attached Images

10-23-2009, 03:33 PM	#18
kev2809 low n' slo Join Date: Mar 2009 Location: rosenberg, texas Posts: 5,133	Re: air bags hitting the bump stops!!!!! I cut mine off all the way..haven't hit the road in yet yet and probably won't until next year. u guys gonna run any bumpstops? __________________ 67 1/2 ton Suburban - Project DRGNWGN. Build thread -_--_--_ _________ _--_-_ -/____\|__\|__\__ ,.,,,.,.,,.,\|_O _______ O_]

10-23-2009, 03:42 PM	#19
fiddy9apache Registered User Join Date: Aug 2009 Location: ftw tex Posts: 682	Re: air bags hitting the bump stops!!!!! dzl1 how do you like your slams? i notice you arnt running shocks, hows the ride?

10-23-2009, 08:03 PM	#20
dznucks Registered User Join Date: Feb 2006 Location: Smyrna, Ga Posts: 1,647	Re: air bags hitting the bump stops!!!!! thanks for the pics. thats exactly what i needed to see. how low can you go like that? i am planing on running some kind of bump stop. dont know what yet

10-23-2009, 08:44 PM	#21
mycool72 Registered User Join Date: Aug 2008 Location: Mansfield, TX Posts: 309	Re: air bags hitting the bump stops!!!!! No bumpstops for me, they will have air in them when in motion. Stock lcas with plates and cups wasn't very low at all on my truck.

10-24-2009, 12:07 AM	#23
DZL1 One day..... Join Date: Aug 2008 Location: Ocala, FL. Posts: 701	Re: air bags hitting the bump stops!!!!! I am running shocks. you just cant see from the angle picture was taken. I like my slams very much, no complaints. One other thing, I also had to cut about 3/4 of an inch of the ends of the front sway bar. when aired out, the ends would rub on the bag. Hey Michael Bustamante, I dont see a sway bar on yours? DZL1. Last edited by DZL1; 10-24-2009 at 12:14 AM.

10-24-2009, 01:27 AM	#24
Twisted78SS Wide n'Low Join Date: Jan 2007 Location: La Center, WA Posts: 1,511	Re: air bags hitting the bump stops!!!!! Cut mine off, and I am running upper and lower plates from jlaird here on the board. __________________ Trippin Hazard.. 67 swb, Gold Member.. 68 Suburban Air Force Retired

10-24-2009, 09:29 AM	#25
scotts62 One day... Join Date: Apr 2008 Location: Tuttle, Ok Posts: 9,240	Re: air bags hitting the bump stops!!!!! I used a spot weld cutter an drilled the bracket welds out and used a air hammer to knock the bracket of then ground the control arm smooth. __________________ Scott 93 crew cab build Project 62

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