lowering 3/4ton longbed - The 1947 - Present Chevrolet & GMC Truck Message Board Network

65chevysub · 10-23-2022, 10:43 AM

Has anyone done a slight lowering of their 3/4 ton long bed? I'm throwing the idea around but want to see what is involved, and how it will look. I have an 84 Sierra 2500 with the HD rear axle. It's my daily driver that I use to go camping, or just out exploring dirt roads so don't want to go too low if I do lower it.

kipps · 10-23-2022, 10:59 AM

2wd or 4wd?

If you have the full-float rear axle, I assume it's a c20 with a big-block engine. Unless someone swapped the full-float into it.

65chevysub · 10-28-2022, 06:34 PM

Quote:

Originally Posted by kipps

2wd or 4wd?

If you have the full-float rear axle, I assume it's a c20 with a big-block engine. Unless someone swapped the full-float into it.

Standard 3/4 ton, 2wd with the HD rear axle. Engine is a 350 with a TH400

kipps · 10-29-2022, 08:06 AM

Quote:

Originally Posted by 65chevysub

Standard 3/4 ton, 2wd with the HD rear axle. Engine is a 350 with a TH400

Unless it was special ordered, the full-float was swapped in there, or the big block was swapped out. GM literature specifies a semi-float for all 1981+ c20 and k20 trucks. The exception, was c20 big-block trucks got the full-float.

SCOTI · 10-24-2022, 03:49 PM

Quote:

Originally Posted by 65chevysub

Has anyone done a slight lowering of their 3/4 ton long bed? I'm throwing the idea around but want to see what is involved, and how it will look. I have an 84 Sierra 2500 with the HD rear axle. It's my daily driver that I use to go camping, or just out exploring dirt roads so don't want to go too low if I do lower it.

I lowered my c2500. It's not a Sqaure. But functionality wise, it's also not much different. The same logic I applied to my Squarebody dually applied to my 3/4 ton (c2500/CC/SWB).

What are your specific concerns?

Wikid61 · 10-25-2022, 04:24 PM

Cut one wrap off the ft. coils. Move the spring hangers up 2" in the rear.

5025speed · 10-27-2022, 09:47 PM

Wikid61 What would that do to the ride, loading/towing capacity etc, what would be the downfall of this?

Wikid61 · 10-27-2022, 09:54 PM

The front will firm up, and corner tighter. The rear is still the same rating/ride. It will have a lower center of gravity. Upgrading shocks & adding a rear sway bar will further improve the truck.

10-23-2022, 10:43 AM	#1
65chevysub Registered User Join Date: Feb 2013 Location: Cottonwood, Arizona Posts: 1,382	lowering 3/4ton longbed Has anyone done a slight lowering of their 3/4 ton long bed? I'm throwing the idea around but want to see what is involved, and how it will look. I have an 84 Sierra 2500 with the HD rear axle. It's my daily driver that I use to go camping, or just out exploring dirt roads so don't want to go too low if I do lower it.

10-23-2022, 10:59 AM	#2
kipps Registered User Join Date: Jul 2014 Location: North-central Virginia Posts: 1,104	Re: lowering 3/4ton longbed 2wd or 4wd? If you have the full-float rear axle, I assume it's a c20 with a big-block engine. Unless someone swapped the full-float into it. __________________ 1987 C6P V20 truck, 2010 LMG 5.3, AFM delete, 2010 Camaro exhaust manifolds, 1997 nv4500, 1991 np241c, hydroboost, 2005 14bff axle & driveshaft, drop-n-lock gooseneck, 4.10 gears, stock suspension, rims, and tires. Still a work in progress. Any questions or suggestions are welcome!

10-25-2022, 04:24 PM	#6
Wikid61 Registered User Join Date: Aug 2013 Location: anamosa iowa Posts: 58,278	Re: lowering 3/4ton longbed Cut one wrap off the ft. coils. Move the spring hangers up 2" in the rear. __________________ "Envy is a declaration of inferiority". Napoleon Bonaparte.

10-27-2022, 09:47 PM	#7
5025speed Registered User Join Date: Oct 2007 Location: arlington, washington Posts: 27	Re: lowering 3/4ton longbed Wikid61 What would that do to the ride, loading/towing capacity etc, what would be the downfall of this?

10-27-2022, 09:54 PM	#8
Wikid61 Registered User Join Date: Aug 2013 Location: anamosa iowa Posts: 58,278	Re: lowering 3/4ton longbed The front will firm up, and corner tighter. The rear is still the same rating/ride. It will have a lower center of gravity. Upgrading shocks & adding a rear sway bar will further improve the truck. __________________ "Envy is a declaration of inferiority". Napoleon Bonaparte.



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