drop blocks - The 1947 - Present Chevrolet & GMC Truck Message Board Network

staydubbin · 07-06-2017, 12:35 AM

hey all while doing research on bagged 67-72's ive noticed people have been running rear drop blocks, but cant find any info on why. is it to just sit lower all together?

gringoloco · 07-06-2017, 10:12 AM

Yes, lets you sit lower while keeping the bag within its optimal installed height range, which leads to better ride quality. Also helps the long panhard bars clear a c-notch.

staydubbin · 07-06-2017, 12:47 PM

Quote:

Originally Posted by gringoloco

Yes, lets you sit lower while keeping the bag within its optimal installed height range, which leads to better ride quality. Also helps the long panhard bars clear a c-notch.

As of now I havnt installed my adjustable panhard bar, or put in my notch. But if I put in some 2" drop blocks it should sit 2" lower than this ?
Posted via Mobile Device

gringoloco · 07-06-2017, 01:22 PM

Looks like the frame is sitting on (or near) the axle out back. Drop blocks won't overcome this interference to get you any lower--you'll need the c-notch for that...

staydubbin · 07-06-2017, 01:41 PM

Quote:

Originally Posted by gringoloco

Looks like the frame is sitting on (or near) the axle out back. Drop blocks won't overcome this interference to get you any lower--you'll need the c-notch for that...

You are correct! Hoping to get my notch installed In the next couple weeks! So putting in blocks at this point won't do or help anything ?
Posted via Mobile Device

**lolife99** · 07-06-2017, 05:07 PM

Quote:

Originally Posted by staydubbin

You are correct! Hoping to get my notch installed In the next couple weeks! So putting in blocks at this point won't do or help anything ?
Posted via Mobile Device

I use lowering blocks to keep the ride height low, with the correct amount of air in the bags.

gringoloco · 07-06-2017, 05:53 PM

Blocks will let you have more air pressure in your bags at ride height (basically your bag can be aired-up 2" taller) which will improve ride quality (to a point, after which it gets very firm/bouncy). You want your bags within the manufacturer's recommended installed height range while at your desired ride height. Also with blocks, your shocks are more likely to be in their optimal travel, near center-stroke, versus over-compressed.

I personally would not do bags in stock location without 2" blocks, long panhard, c-notch, and shock relocators. All that said, it's up to you, your ride height desires, and budget, but it certainly won't hurt to have blocks installed as you move forward with c-notch and panhard mods.

Buuuuut (big but), if you are happy with how it feels now, you can probably do without.

gringoloco · 07-06-2017, 05:54 PM

Quote:

Originally Posted by lolife99

I use lowering blocks to keep the ride height low, with the correct amount of air in the bags.

What he said

SCOTI · 07-07-2017, 12:55 PM

The blocks also help w/shock travel on trucks using OE placed mounts.

Since the block raises the rear end from its position above the T/A but doesn't alter the location of the shock mounts, you get some additional drop w/o impacting the shocks available travel.

**dec010974** · 07-10-2017, 09:00 PM

Once you install the blocks with a step notch it should look something like this

07-06-2017, 12:35 AM	#1
staydubbin Registered User Join Date: Aug 2011 Location: tacoma, wa Posts: 41	drop blocks hey all while doing research on bagged 67-72's ive noticed people have been running rear drop blocks, but cant find any info on why. is it to just sit lower all together?

07-06-2017, 10:12 AM	#2
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Re: drop blocks Yes, lets you sit lower while keeping the bag within its optimal installed height range, which leads to better ride quality. Also helps the long panhard bars clear a c-notch. __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy

07-06-2017, 01:22 PM	#4
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Re: drop blocks Looks like the frame is sitting on (or near) the axle out back. Drop blocks won't overcome this interference to get you any lower--you'll need the c-notch for that... __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy

07-06-2017, 05:53 PM	#7
gringoloco A guy with a truck Join Date: Sep 2005 Location: Germany, for now Posts: 5,921	Re: drop blocks Blocks will let you have more air pressure in your bags at ride height (basically your bag can be aired-up 2" taller) which will improve ride quality (to a point, after which it gets very firm/bouncy). You want your bags within the manufacturer's recommended installed height range while at your desired ride height. Also with blocks, your shocks are more likely to be in their optimal travel, near center-stroke, versus over-compressed. I personally would not do bags in stock location without 2" blocks, long panhard, c-notch, and shock relocators. All that said, it's up to you, your ride height desires, and budget, but it certainly won't hurt to have blocks installed as you move forward with c-notch and panhard mods. Buuuuut (big but), if you are happy with how it feels now, you can probably do without. __________________ -Chris Instagram _elgringoloco_ '70 Short-Wide How to: Ruin a perfectly good C10 ‘70 Blazer ConversionHow To: Ruin a Perfectly Good 4wd '72 Highlander How To: Ruin a Perfectly Good K/5 (SOLD) '72 Blazer 2WD How to: Ruin a perfectly good Blazer (SOLD) '05 Yukon Daily Driven (not so stock) Yukon (SOLD) ‘07 Yukon Denali (daily) Members met list: SCOTI, darkhorse970, 67cheby, 67cheby'sGirl, klmore, porterbuilt, n2billet, Fastrucken, classicchev, Col Clank, GSFMECH, HuggerCST, Spray-Bomb, BACKYARD88, 5150, fine69, fatbass, smbrouss70, 65StreetCruiser, GAc10boy

07-07-2017, 12:55 PM	#9
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,031	Re: drop blocks The blocks also help w/shock travel on trucks using OE placed mounts. Since the block raises the rear end from its position above the T/A but doesn't alter the location of the shock mounts, you get some additional drop w/o impacting the shocks available travel. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.*

07-10-2017, 09:00 PM	#10
dec010974 Senior Member Join Date: Oct 2012 Location: Miami, Florida Posts: 932	Re: drop blocks Once you install the blocks with a step notch it should look something like this Attached Images



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