need new air bags - The 1947 - Present Chevrolet & GMC Truck Message Board Network

lost wages · 04-01-2003, 04:22 AM

im redoing the rear of my truck, it had the firestone 2500? bags, i want something a little larger, who can get them for me? What would be a good bag? i dont need a super fast bag, i just want more lift. heres a hint at what im doing.

Dropt72Shortbed · 04-01-2003, 04:41 AM

airlifts new gen 2 bags have slightly more lift than firestones, slam specialties have a couple more inches. if your really into lift you should move the backs further up the trailing arm or redesign the suspension.

lowsinthe20s · 04-01-2003, 11:31 AM

I would get slam speicalties bags. The rs-72 is a dirrect replacment for the firestone 2600# and provides a max lift of 11" the firestones are only 8" . I had firestone for three years . They where ok , but the slam bags are alot better made bag plus more lift. You can get them at http://www.streetbeatcustoms.com/slamspecdoub.html

There $89.95 each and I think they still have free shipping this is the cheapest place I have seen them.

orange72 · 04-01-2003, 03:24 PM

where are you placing the bags at. im sure the bags wont be placed in stock location because then you wouldnt be taking full advatage of that step notch. why not try to fab mounts on the trailing arms farther towards the crossmember. that way you could get way more lift plus ive heard it rides better.

lost wages · 04-02-2003, 04:34 AM

im thinking of doing a 4 link, it looks like i might have problems with the exhaust if i dont, if i keep the stock trailing arms and build new mounts would the firestone bags i have work fine or since i would be moving them forward(increasing leverage) would i be better off with a larger bag? thanks guys.

Reumster · 04-02-2003, 09:59 AM

I would stick with the stock trailing arms, and relocate bags. But heck 11" is alot of lift. But not if your body dropping though I guess. I think I'm going to go with Slam bags after that info. Scott told me they where good to.

fastbagged68 · 04-02-2003, 02:37 PM

go with a bigger bag and move it up the trailing arm. Mount it on the trailing arm and not to the side of the arm. If you mount it on the side of the trailering arm it will twist. I'm going to move mine to the inside of the frame and directly above the trailing arm and put in a large notch. Also your trailing arm in going to hit the frame where it goes underneath the frame. Right before the orignal spring mount. You can put a large block in the axel to make it not as close, but depending on how big your notch it might not interfere. Hope i made sense.

orange72 · 04-02-2003, 02:52 PM

yea with my notch and 3 inch blocks the trailing arm almost hits the inside of the frame. whenever you get the bag mounts finished fastbagged i wouldnt mind seeing some pics. the way you want to do it is exactly how im goin to do it but i would like to see some visuals.

fastbagged68 · 04-02-2003, 03:11 PM

I will get pics up with in a month or so. I'm going to start making th notch and mounting the bags as soon as I get the frame to my garage. I'm also going to crossmember drop it. I will take progress pics of all the suspension work. I'm trying to get the frame as low as possible with out Zing the frame. To mount my bags in the rear should not take to long

04-01-2003, 04:22 AM	#1
lost wages Registered User Join Date: Apr 2001 Location: jefferson city, mo Posts: 1,364	need new air bags im redoing the rear of my truck, it had the firestone 2500? bags, i want something a little larger, who can get them for me? What would be a good bag? i dont need a super fast bag, i just want more lift. heres a hint at what im doing. Attached Images

04-01-2003, 11:31 AM	#3
lowsinthe20s Registered User Join Date: Jun 2001 Location: Florida Posts: 20	Slam speicalties bags I would get slam speicalties bags. The rs-72 is a dirrect replacment for the firestone 2600# and provides a max lift of 11" the firestones are only 8" . I had firestone for three years . They where ok , but the slam bags are alot better made bag plus more lift. You can get them at http://www.streetbeatcustoms.com/slamspecdoub.html There $89.95 each and I think they still have free shipping this is the cheapest place I have seen them.

04-01-2003, 03:24 PM	#4
orange72 Registered User Join Date: Sep 2000 Location: huntington,texas,united states Posts: 399	where are you placing the bags at. im sure the bags wont be placed in stock location because then you wouldnt be taking full advatage of that step notch. why not try to fab mounts on the trailing arms farther towards the crossmember. that way you could get way more lift plus ive heard it rides better. __________________ 1972 chevy long bed. Currently under construction!! Bagged, 383/700r4.

04-02-2003, 09:59 AM	#6
Reumster L.E.D. Freak Join Date: Jan 2002 Location: Polson MT Posts: 1,358	I would stick with the stock trailing arms, and relocate bags. But heck 11" is alot of lift. But not if your body dropping though I guess. I think I'm going to go with Slam bags after that info. Scott told me they where good to. __________________ Specializing in Custom L.E.D. inserts. http://www.ccled.com/ Contact me @ blazer2wd1972@hotmail.com (406)675-8082 or Joel @ jmcwaters@eps-corp.net 1972 2wd Blazer, 350/700R4/3:73 posi, err & Custom L.E.D. inserts! LOL

04-02-2003, 02:52 PM	#8
orange72 Registered User Join Date: Sep 2000 Location: huntington,texas,united states Posts: 399	yea with my notch and 3 inch blocks the trailing arm almost hits the inside of the frame. whenever you get the bag mounts finished fastbagged i wouldnt mind seeing some pics. the way you want to do it is exactly how im goin to do it but i would like to see some visuals. __________________ 1972 chevy long bed. Currently under construction!! Bagged, 383/700r4.

04-01-2003, 04:41 AM	#2
Dropt72Shortbed Registered User Join Date: May 2002 Location: Huntington Beach CA Posts: 678	airlifts new gen 2 bags have slightly more lift than firestones, slam specialties have a couple more inches. if your really into lift you should move the backs further up the trailing arm or redesign the suspension.

04-02-2003, 04:34 AM	#5
lost wages Registered User Join Date: Apr 2001 Location: jefferson city, mo Posts: 1,364	im thinking of doing a 4 link, it looks like i might have problems with the exhaust if i dont, if i keep the stock trailing arms and build new mounts would the firestone bags i have work fine or since i would be moving them forward(increasing leverage) would i be better off with a larger bag? thanks guys.

04-02-2003, 02:37 PM	#7
fastbagged68 Registered User Join Date: Jun 2002 Location: Tri Valley California Posts: 792	go with a bigger bag and move it up the trailing arm. Mount it on the trailing arm and not to the side of the arm. If you mount it on the side of the trailering arm it will twist. I'm going to move mine to the inside of the frame and directly above the trailing arm and put in a large notch. Also your trailing arm in going to hit the frame where it goes underneath the frame. Right before the orignal spring mount. You can put a large block in the axel to make it not as close, but depending on how big your notch it might not interfere. Hope i made sense.

04-02-2003, 03:11 PM	#9
fastbagged68 Registered User Join Date: Jun 2002 Location: Tri Valley California Posts: 792	I will get pics up with in a month or so. I'm going to start making th notch and mounting the bags as soon as I get the frame to my garage. I'm also going to crossmember drop it. I will take progress pics of all the suspension work. I'm trying to get the frame as low as possible with out Zing the frame. To mount my bags in the rear should not take to long



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