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

bigred66 · 04-29-2005, 10:00 PM

Maybe stupid questions were could I find drop blocks for my 66? I keep finding s-10 ones are these are small right or can I use them?

kamikazegmc · 04-29-2005, 11:16 PM

any auto parts store should have some universal blocks for leafs, but your most likey looking for block trailing arms.

bigred66 · 04-29-2005, 11:20 PM

Quote:

but your most likey looking for block trailing arms.

i must need more help than i thought

kamikazegmc · 04-29-2005, 11:41 PM

i ment blocks for trailing arms.

Bagd72Chevy · 04-30-2005, 02:30 AM

Block for trailing arms are different because the U-Bolt goes throught them. Check out cpp(classic performance parts) they have a 2 inch kit.

72BLAZERDUDE · 04-30-2005, 08:49 AM

CPP is where we got ours. And also 2" is as tall as you want to go.

bigred66 · 04-30-2005, 09:47 AM

Thanks they are on the way now

jlaird · 04-30-2005, 10:10 AM

thanks 72blazerdude. I was just about to ask that question! While I'm writing...what would be the adverse effects of a 3" block?

Bagd72Chevy · 04-30-2005, 10:32 AM

One problem is the bigger the block the more your axle is pushed forward when you let the air out. Not much, but you can see it.

jlaird · 04-30-2005, 11:00 AM

Ok, that's good info to know. So when I go to find center on my frame for the c-notch, I will want the blocks in first, right? (just learning, don't make fun!!)

josh

72BLAZERDUDE · 04-30-2005, 03:03 PM

Using 3 inch blocks starts putting things like shock mounts way to close to the ground. If you used 3 inch blocks with a shock relocating kit like ECE it will put the lower shock mount somewhere close to 2 inches from the ground. Granted it is in the centerline of the rear wheels but thats to close for me.

kamikazegmc · 04-30-2005, 03:22 PM

i was thinking of getting some drop blocks (the ones for leafs), but i have two questions if i go w/ 3" block wouyld i need new shocks? and right now my leaf are above the alxe what do i need for the block to work/ how do the block work?

*1FaastC10* · 04-30-2005, 04:49 PM

you need a flip kit first, which will give you 5-6" depending on your springs, your rear axle, and the flip kit manufacturer. you can get shackles to give you 2", shackles and hangers to give you 4". drop springs are another option

Peregrine · 05-01-2005, 12:28 PM

I will tell you this. I recently discovered that if you want to run your exhaust out the rear by going over the axle tubes you can do it if you have 2 inch blocks and 3 inch springs.

SCOTI · 05-01-2005, 03:13 PM

Quote:

Originally Posted by jlaird

Ok, that's good info to know. So when I go to find center on my frame for the c-notch, I will want the blocks in first, right? (just learning, don't make fun!!)

josh

You should measure the axle C/L w/the rear end bottomed against the frame w/the blocks installed.

fastbagged68 · 05-02-2005, 02:27 PM

I got 3 inch blocks and mine are not close to the ground... It depends on how tall your tire is. I got 29.5" If you are running a 25"-27" tire it would effect it though!

smokekiki · 05-02-2005, 02:42 PM

Also with a big block,if You get a flat,You will be skidding on the ubolts and trailing arms,instead of the rim and tire.

jlaird · 05-03-2005, 09:02 AM

is cpp the only place to get them specifically designed for our trucks?

bigred66 · 05-03-2005, 07:07 PM

nope http://www.gmcpauls.com/67-72_d&s.htm and http://www.performancesuspension.com/TruckLowerTwo.htm are the 2 others i found

and i think these http://www.stockcarproducts.com/trkarm1.htm would work

Rollie396 · 05-04-2005, 02:08 AM

just a quick note.If you are running your bags in the original spring location,you will need more than a c-notch to clear.I fabbed a 2.5" notch,installed the bags and tested it to find that there is about a 1/2" of room left in the notch when aired out.This is with no drop blocks.Make sure to post some pics of your install!

jlaird · 05-05-2005, 09:05 AM

Is what rollie396 true? Does it depend on what size wheels/tires your running?

I thought a bolt-in c-notch, 2-inch blocks, and bag in stock coil location was a fairly common set-up.

Josh

fastbagged68 · 05-05-2005, 11:54 AM

Yes Rollie396 is correct.. Tire size doesn't matter on what he is talking about. The bag is bottom out between the trailing arm and the frame.

04-29-2005, 10:00 PM	#1
bigred66 Registered User Join Date: Mar 2005 Location: Pineville, Mo Posts: 123	Drop blocks Maybe stupid questions were could I find drop blocks for my 66? I keep finding s-10 ones are these are small right or can I use them? __________________ Atom (bigRed66) 1966- C10 1995- Wide Body Talon 1987- Dodge Raider (4 sale) 2000- 4-door Nissan Frontier 2003- Ford Focus (wife)

04-29-2005, 11:16 PM	#2
kamikazegmc Registered Smarta$$ Join Date: Mar 2004 Location: vancouver, wa Posts: 214	any auto parts store should have some universal blocks for leafs, but your most likey looking for block trailing arms. __________________ 63 GMC custom going to be slammed

04-29-2005, 11:41 PM	#4
kamikazegmc Registered Smarta$$ Join Date: Mar 2004 Location: vancouver, wa Posts: 214	i ment blocks for trailing arms. __________________ 63 GMC custom going to be slammed

04-30-2005, 08:49 AM	#6
72BLAZERDUDE Registered User Join Date: Jan 2002 Location: WATAUGA,TX Posts: 660	CPP is where we got ours. And also 2" is as tall as you want to go. __________________ 72 2wd 307/AT/AC/TILT WHEEL 78 JIMMY HIGH SIERRA Last edited by 72BLAZERDUDE; 04-30-2005 at 08:51 AM.

04-30-2005, 09:47 AM	#7
bigred66 Registered User Join Date: Mar 2005 Location: Pineville, Mo Posts: 123	Thanks they are on the way now __________________ Atom (bigRed66) 1966- C10 1995- Wide Body Talon 1987- Dodge Raider (4 sale) 2000- 4-door Nissan Frontier 2003- Ford Focus (wife)

04-30-2005, 02:30 AM	#5
Bagd72Chevy C10 Collector Join Date: Oct 2003 Location: Baton Rouge, LA Posts: 417	Block for trailing arms are different because the U-Bolt goes throught them. Check out cpp(classic performance parts) they have a 2 inch kit.

04-30-2005, 10:10 AM	#8
jlaird Senior Member Join Date: May 2004 Location: johnstown, NY Posts: 2,393	thanks 72blazerdude. I was just about to ask that question! While I'm writing...what would be the adverse effects of a 3" block?

04-30-2005, 10:32 AM	#9
Bagd72Chevy C10 Collector Join Date: Oct 2003 Location: Baton Rouge, LA Posts: 417	One problem is the bigger the block the more your axle is pushed forward when you let the air out. Not much, but you can see it.

04-30-2005, 11:00 AM	#10
jlaird Senior Member Join Date: May 2004 Location: johnstown, NY Posts: 2,393	Ok, that's good info to know. So when I go to find center on my frame for the c-notch, I will want the blocks in first, right? (just learning, don't make fun!!) josh

04-30-2005, 03:03 PM	#11
72BLAZERDUDE Registered User Join Date: Jan 2002 Location: WATAUGA,TX Posts: 660	Using 3 inch blocks starts putting things like shock mounts way to close to the ground. If you used 3 inch blocks with a shock relocating kit like ECE it will put the lower shock mount somewhere close to 2 inches from the ground. Granted it is in the centerline of the rear wheels but thats to close for me. __________________ 72 2wd 307/AT/AC/TILT WHEEL 78 JIMMY HIGH SIERRA

04-30-2005, 03:22 PM	#12
kamikazegmc Registered Smarta$$ Join Date: Mar 2004 Location: vancouver, wa Posts: 214	i was thinking of getting some drop blocks (the ones for leafs), but i have two questions if i go w/ 3" block wouyld i need new shocks? and right now my leaf are above the alxe what do i need for the block to work/ how do the block work? __________________ 63 GMC custom going to be slammed Last edited by kamikazegmc; 04-30-2005 at 03:22 PM.

04-30-2005, 04:49 PM	#13
1FaastC10 Account Suspended Join Date: Oct 2002 Location: Elkhart, IN Posts: 6,400	you need a flip kit first, which will give you 5-6" depending on your springs, your rear axle, and the flip kit manufacturer. you can get shackles to give you 2", shackles and hangers to give you 4". drop springs are another option

05-01-2005, 12:28 PM	#14
Peregrine Registered User Join Date: Sep 2004 Location: Louisville, Ky Posts: 329	I will tell you this. I recently discovered that if you want to run your exhaust out the rear by going over the axle tubes you can do it if you have 2 inch blocks and 3 inch springs. __________________ Brian 72 C10 longbed 350/th400 Let the world change you and you will change the world.

05-02-2005, 02:27 PM	#16
fastbagged68 Registered User Join Date: Jun 2002 Location: Tri Valley California Posts: 792	I got 3 inch blocks and mine are not close to the ground... It depends on how tall your tire is. I got 29.5" If you are running a 25"-27" tire it would effect it though!

05-02-2005, 02:42 PM	#17
smokekiki Mike Join Date: Jan 2003 Location: west chester pa Posts: 2,474	Also with a big block,if You get a flat,You will be skidding on the ubolts and trailing arms,instead of the rim and tire. __________________ 70'c/10, 71 suburban4x4 402bb, 72suburban 4/6 drop, 72k/5 4x4 blazer 4" lift 35 tires



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05-03-2005, 09:02 AM	#18
jlaird Senior Member Join Date: May 2004 Location: johnstown, NY Posts: 2,393	is cpp the only place to get them specifically designed for our trucks?

05-03-2005, 07:07 PM	#19
bigred66 Registered User Join Date: Mar 2005 Location: Pineville, Mo Posts: 123	nope http://www.gmcpauls.com/67-72_d&s.htm and http://www.performancesuspension.com/TruckLowerTwo.htm are the 2 others i found and i think these http://www.stockcarproducts.com/trkarm1.htm would work __________________ Atom (bigRed66) 1966- C10 1995- Wide Body Talon 1987- Dodge Raider (4 sale) 2000- 4-door Nissan Frontier 2003- Ford Focus (wife)

05-04-2005, 02:08 AM	#20
Rollie396 someday it will be done! Join Date: Sep 2004 Location: Lloydminster,AB. Canada Posts: 1,620	just a quick note.If you are running your bags in the original spring location,you will need more than a c-notch to clear.I fabbed a 2.5" notch,installed the bags and tested it to find that there is about a 1/2" of room left in the notch when aired out.This is with no drop blocks.Make sure to post some pics of your install! __________________ '72 C-10 Proud owner of a million new and used pieces that used to be and will once again be(god willing) a testament to the term "they don't build em like that anymore. '80 LWB 2wd beater '67 GMC long fleet (cab donor) '66 long step (parked till it's turn comes around) '65 short step (parts truck that will donate it's bed and possibly frame to the '66) '06 Grand Prix wife's car (she hardly lets me touch it) my pics

05-05-2005, 09:05 AM	#21
jlaird Senior Member Join Date: May 2004 Location: johnstown, NY Posts: 2,393	Is what rollie396 true? Does it depend on what size wheels/tires your running? I thought a bolt-in c-notch, 2-inch blocks, and bag in stock coil location was a fairly common set-up. Josh

05-05-2005, 11:54 AM	#22
fastbagged68 Registered User Join Date: Jun 2002 Location: Tri Valley California Posts: 792	Yes Rollie396 is correct.. Tire size doesn't matter on what he is talking about. The bag is bottom out between the trailing arm and the frame.

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