Bag a 4wd burb? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

C20_Paul · 10-12-2010, 01:00 AM

I've been looking at getting a '90 or '91 burb for awhile now and I really want one with four wheel drive. But I was wondering: is it harder to bag a 4WD than it is to bag a 2WD?

And what vendors do you guys like for air bag parts/kits? Thanks in advance and apologies for my ignorance!

y5mgisi · 10-12-2010, 02:34 AM

Bagging it would be quite easy. To "slam" it would be the tough part.

bikes&bowties · 10-12-2010, 03:09 AM

Just c-notch the rear and then z the front end.? Plus notch it... in reality it wouldnt be THAT hard

**special-K** · 10-12-2010, 08:18 AM

Is the purpose to lower???? Or,to add versatility to the suspension?The problem with slamming a 4wd is the motor kinda gets in the way.The rear is no different than a 2wd.Even with IFS there's a differential and driveshaft to content with.

Davidmichael · 10-12-2010, 09:18 AM

You can go down but only to a certain point. If you want a static drop there is a 4x4 drag truck that's lowered.

http://www.msmisery.com/

With Zing the frame or anything like that, you can do it to a small point but then you get into a lot of clearance issues with the drive shaft and what not.

justpball · 10-12-2010, 09:47 AM

2wd will be much easier if you want to slam it...

C20_Paul · 10-12-2010, 10:53 AM

Thanks for the answers! All I had planned was a mild 2" or 4" drop so it sounds like that should be easy.

I dropped my '67 c20 2/4 using coils and the thing rides like crap. Partly because I should have used drop spindles in the front and partly because it is a 3/4 ton truck and just has a rougher ride to begin with. My end goal with a burb would be to have a 4wd DD with kind of a pro-touring spin on it. That could also tow a boat/camper when needed. Damn, that sounds like a tall order when I say it out loud, doesn't it?

I really like a smooth ride that can handle well in the twisties. I realize that the burb's high center of gravity and heavy duty suspension is going to limit me, but if I can get it close to my goal I'd be happy.

I've never ridden in a bagged truck/burban. Is the ride quality better than a static drop? And is the imrpovement in the ride worth the incremental expense? (I'm assuming that bagging is more expensive than a static drop)

Prerunner1982 · 10-12-2010, 01:59 PM

Since the 90 or 91 would have a solid axle you would have to Z the front... then you will problem run into driveshaft clearance issues as well as steering issues. Your other main issue will be the front differential clearing the oil pan. If you dropped in an Inline 6 you may be able to place the motor all the way to the opposite side to allow more room for the diff.

Davidmichael · 10-12-2010, 09:09 PM

Yes the ride is better with a bagged truck than a static drop, but if you are looking at cost wise, it's not with the cost vrs the amount of work to make everything work right. If you want to lower a 4x4, I would get something in a later model and lower it.

y5mgisi · 10-12-2010, 10:33 PM

A 2" drop would be fairly easy.

**N2TRUX** · 10-14-2010, 11:03 AM

Quote:

Originally Posted by y5mgisi

A 2" drop would be fairly easy.

Not really. Have you ever looked at the front springs on a 4wd. They are negative arched already. If you have 2" less travel, your hitting the stops.

cheepin · 10-13-2010, 10:18 PM

I don't think you could easily lower a 4wd.The front leaves are already in a negative arch and only like 1" from the bumpstops.Also the crossmember is not very far above the front diff.

I guess you could fab a shorter crossmember,lose the bumpstops and french the spring hangers.Then you would still have the front drive-shaft hitting the starter.

You could lose the body bushings that would get the body down around an 1" or so.

BLE 'BURBAN · 10-14-2010, 02:42 AM

This is an old build on an older model (67-72) but the same should apply to our squarebodies as well. air bagged solid axle 4x4

10-12-2010, 01:00 AM	#1
C20_Paul Registered User Join Date: Jul 2007 Location: Portland, OR Posts: 35	Bag a 4wd burb? I've been looking at getting a '90 or '91 burb for awhile now and I really want one with four wheel drive. But I was wondering: is it harder to bag a 4WD than it is to bag a 2WD? And what vendors do you guys like for air bag parts/kits? Thanks in advance and apologies for my ignorance!

10-12-2010, 02:34 AM	#2
y5mgisi Second Chance Program Join Date: Jun 2006 Location: Portland, OR Posts: 2,642	Re: Bag a 4wd burb? Bagging it would be quite easy. To "slam" it would be the tough part.

10-12-2010, 03:09 AM	#3
bikes&bowties Registered User Join Date: May 2009 Location: Washington Posts: 663	Re: Bag a 4wd burb? Just c-notch the rear and then z the front end.? Plus notch it... in reality it wouldnt be THAT hard

10-12-2010, 08:18 AM	#4
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: Bag a 4wd burb? Is the purpose to lower???? Or,to add versatility to the suspension?The problem with slamming a 4wd is the motor kinda gets in the way.The rear is no different than a 2wd.Even with IFS there's a differential and driveshaft to content with. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

10-12-2010, 09:18 AM	#5
Davidmichael Registered User Join Date: Jun 2010 Location: Pittsburgh PA Posts: 686	Re: Bag a 4wd burb? You can go down but only to a certain point. If you want a static drop there is a 4x4 drag truck that's lowered. http://www.msmisery.com/ With Zing the frame or anything like that, you can do it to a small point but then you get into a lot of clearance issues with the drive shaft and what not. __________________ 86 Suburban 2WD = rolled it and totaled it 83 LWB STD Cab 4x4 = went to the scrapper. Was my baby. 84 Suburban 2WD = stripped it/ scrapped it 81 8 foot bed made into a trailer 86 Suburban going to be made into a trailer 91 Suburban 4x4 = that's my baby 00 S10 Xtreme STD Cab 01 S10 ZR2

10-12-2010, 09:47 AM	#6
justpball Registered User Join Date: Dec 2008 Location: Silverhill, Al Posts: 2,026	Re: Bag a 4wd burb? 2wd will be much easier if you want to slam it... __________________ Fuzzy Dice Club Member 87 Crew SWB Build for the crew http://67-72chevytrucks.com/vboard/s...d.php?t=430082 http://www.cardomain.com/ride/3232925 90 burb 2wd Build Thread For The Burb! http://67-72chevytrucks.com/vboard/s...d.php?t=383055

10-12-2010, 10:53 AM	#7
C20_Paul Registered User Join Date: Jul 2007 Location: Portland, OR Posts: 35	Re: Bag a 4wd burb? Thanks for the answers! All I had planned was a mild 2" or 4" drop so it sounds like that should be easy. I dropped my '67 c20 2/4 using coils and the thing rides like crap. Partly because I should have used drop spindles in the front and partly because it is a 3/4 ton truck and just has a rougher ride to begin with. My end goal with a burb would be to have a 4wd DD with kind of a pro-touring spin on it. That could also tow a boat/camper when needed. Damn, that sounds like a tall order when I say it out loud, doesn't it? I really like a smooth ride that can handle well in the twisties. I realize that the burb's high center of gravity and heavy duty suspension is going to limit me, but if I can get it close to my goal I'd be happy. I've never ridden in a bagged truck/burban. Is the ride quality better than a static drop? And is the imrpovement in the ride worth the incremental expense? (I'm assuming that bagging is more expensive than a static drop)

10-12-2010, 01:59 PM	#8
Prerunner1982 Registered User Join Date: Oct 2002 Location: Edmond, OK Posts: 5,904	Re: Bag a 4wd burb? Since the 90 or 91 would have a solid axle you would have to Z the front... then you will problem run into driveshaft clearance issues as well as steering issues. Your other main issue will be the front differential clearing the oil pan. If you dropped in an Inline 6 you may be able to place the motor all the way to the opposite side to allow more room for the diff. __________________ Jon 1982 Chevy Silverado 350/th350.... RETIRED 1993 Jeep XJ 2 door(Cherokee) 4wd 4.0ltr/AX-15 (5spd)/NP231 .... Oklahoma Roll Call

10-12-2010, 09:09 PM	#9
Davidmichael Registered User Join Date: Jun 2010 Location: Pittsburgh PA Posts: 686	Re: Bag a 4wd burb? Yes the ride is better with a bagged truck than a static drop, but if you are looking at cost wise, it's not with the cost vrs the amount of work to make everything work right. If you want to lower a 4x4, I would get something in a later model and lower it. __________________ 86 Suburban 2WD = rolled it and totaled it 83 LWB STD Cab 4x4 = went to the scrapper. Was my baby. 84 Suburban 2WD = stripped it/ scrapped it 81 8 foot bed made into a trailer 86 Suburban going to be made into a trailer 91 Suburban 4x4 = that's my baby 00 S10 Xtreme STD Cab 01 S10 ZR2

10-12-2010, 10:33 PM	#10
y5mgisi Second Chance Program Join Date: Jun 2006 Location: Portland, OR Posts: 2,642	Re: Bag a 4wd burb? A 2" drop would be fairly easy.

10-13-2010, 10:18 PM	#12
cheepin Registered User Join Date: Nov 2009 Location: Parachute, CO Posts: 183	Re: Bag a 4wd burb? I don't think you could easily lower a 4wd.The front leaves are already in a negative arch and only like 1" from the bumpstops.Also the crossmember is not very far above the front diff. I guess you could fab a shorter crossmember,lose the bumpstops and french the spring hangers.Then you would still have the front drive-shaft hitting the starter. You could lose the body bushings that would get the body down around an 1" or so. __________________ 1984 1ton 4x4 crew cab dually 6.2 diesel,465,205,D60,D70,1987 3/4ton 4x4 suburban 5.7 FI350,TH400,208,1985 CJ-7 FI406,465,205,D60,FF14, 1970 Jeepster 350,465,205,D44,FF14, Last edited by cheepin; 10-13-2010 at 10:21 PM.

10-14-2010, 02:42 AM	#13
BLE 'BURBAN In the Forgotten far North. Join Date: Jul 2007 Location: Anchorage, Alaska Posts: 2,627	Re: Bag a 4wd burb? This is an old build on an older model (67-72) but the same should apply to our squarebodies as well. air bagged solid axle 4x4 __________________ 1987 R3500 CREW CAB DUALLY (BIG RED)Acquired 06/12/2015 1990 chevy suburban V2500 5.7L My cluster Mods-Nov 2007 overhead console Stereo install Round 2 Aug 2009 Heated/turn signal mirror upgrade



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