Custom front airbag suspension

oldestof11

oldestof11

Drag racer
So how does one go about replacing the front springs with air bags? I has no problem relocating the front shocks. Any good articles?

Who is a good company to buy from? Looking for lowering and and ride comfort. I know how I'm doing the rear, it's the front I'm not sure what to do.


2wd truck if you're on Tapatalk.


Sent via USPS 2 weeks ago
 
Buy the bag brackets from a fab shop or something. Weld one to the axle and another in place of the top mount. Add spacers if needed on either end of the bag.

Sent from my XT1080 using Tapatalk
 
Check out Ride Tech (formerly Air Ride Technologies) they know their stuff and have kits for MANY popular cars and trucks as well as fab parts for those wanting to do custom stuff. They are not the cheapest in air bag suspensions, but many would consider them the best!!!

http://www.ridetech.com
 
Goose said:
Is this thing on?
Click to expand...

Thank you!

So I have narrowed it down to the bags I want I do believe.

Now stock replacement springs have an OD of 6", installed height of 11.25", and carry 2264lbs (Moog 7226 springs).

Going off of that, I think Ride Techs F6873 90006873 would be a good bag. 8" OD, 3400lbs capacity, double convoluted.

For the rears, I am going with the F2107 90002107 sleeved bag with 3500lbs load capacity.

I will install an engine driven OBA unit.

I hope to purchase all of this over the next 2-3 months.
 
Whats the spring rate on those Moog springs? The 2264 lbs. sounds about right for the weight at the wheel, but the spring is basically at a 2:1 ratio with the a-arm, so the travel will be about half but the force will be about double.
 
I cannot fine any of that. It just says load rating.

That said, on a vehicle that ways 5800lbs, wouldn't 6800lbs combined weight rating of the front bags be enough? I see these are used in chevy dually bagged setups all the time.
 
I've never weighed the axle weights on my 2wd, but my 4wd was around 4600 on the front and 2600 on the rear. I'm betting that a 2wd would still be close to 4000 lbs. on the front end. So you might need close to 8000 lbs. of spring force for it. Not sure exactly what the ratio is, but its something that needs to be addressed.

Also, if you're using convoluted air bags, keep in mind that their load rating for a given pressures varies dramatically from minimum height to max height. Sleeve bags are a much more linear rating.

http://firestoneip.com/-/media/www/global/files/documents/Catalogs/EMDG.pdf
Page 61 gives the load rating at various pressures/heights on a bag that's max rating is 5k lbs.
 
If you want any more information regarding the Firestone products just PM me if you can not find what you want, I can help. Hopefully.
 
Tate said:
I've never weighed the axle weights on my 2wd, but my 4wd was around 4600 on the front and 2600 on the rear. I'm betting that a 2wd would still be close to 4000 lbs. on the front end. So you might need close to 8000 lbs. of spring force for it. Not sure exactly what the ratio is, but its something that needs to be addressed.



Also, if you're using convoluted air bags, keep in mind that their load rating for a given pressures varies dramatically from minimum height to max height. Sleeve bags are a much more linear rating.



http://firestoneip.com/-/media/www/global/files/documents/Catalogs/EMDG.pdf

Page 61 gives the load rating at various pressures/heights on a bag that's max rating is 5k lbs.
Click to expand...


To get a bag that big, there would be no way for it to fit. 8" would be max before I run into suspension issues.

Doing some more digging, I'm finding 1144lbs/in according to O'Reilly auto parts.
 
Talk to the tech guys at Ride Tech they are sharp guys and design custom setups all the time, I would think they would be able to help you with proper air spring selection especially since you are planning on using their springs!
 
winkdemon said:
here is the specs
http://firestoneip.com/-/media/www/global/files/documents/Data Sheets/W013585426.pdf

just need some brackets should be pretty easy to make
Click to expand...

Link doesn't work on my phone. I'll try it in a bit with my laptop

SKYNYRD said:
Check out this thread. Jared did a 4-link air bag rear and also air bagged the front.
http://www.competitiondiesel.com/forums/showthread.php?t=121397
Click to expand...


Thanks for the thread! I was just thinking of this one last night.
 
This is the pdf file, I took a screen shot of it.
 

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