4/6 drop.... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dinnut · 04-22-2003, 08:35 PM

anyone done the 4/6 drop from early classic. i got a 72 with power steering but no power breaks... 72 chevelle 350 2bbl that needs a lot of work... if not early classic who should i go with?

73stepside · 04-22-2003, 10:41 PM

a lot of guys are running early classics 4/6 drops. they seemed to be very pleased with fit and finish of the whole kit. that's the kit i'm getting.

Project1970 · 04-22-2003, 11:13 PM

I have an ECE 2.5/4 drop, which included a disc swap for the front and leaves (factory leaf truck) for the rear.

Just rolled 30,000mi (installed at 104k, now 134k!) and haven't even had to change a thing with it yet!

superchevy · 04-23-2003, 08:59 AM

My ECE 4/6 drop kit should be here any day now. I'll post pics of the install on my 68/72.

LowSeventy · 04-23-2003, 12:02 PM

I've got their 3.5/6 drop on my 70 shortbed and love it. It actually rides better than it did when it was stock. I would highly recommend them and their kit, they are very knowledgeable and easy to work with. It was real nice to buy a kit and everything actually fit, unlike some of the junk that I bought for my rig. Good luck

crazy4chevs · 04-23-2003, 12:06 PM

ECE 4/6 drop Im working on the cab and body so no together pics, but this might help.

dinnut · 04-23-2003, 08:23 PM

thanks. i think im gonna go for the early classic kit. now all i need is 800 bucks...

gmc67swb · 04-23-2003, 08:46 PM

Quote:

Originally posted by Project1970
I have an ECE 2.5/4 drop, which included a disc swap for the front and leaves (factory leaf truck) for the rear.

Just rolled 30,000mi (installed at 104k, now 134k!) and haven't even had to change a thing with it yet!

HEY PROJECT 1970, THE KIT COMES WITH DE-ARCHED LEAFS? ALWAYS WONDERED ABOUT HOW TO LOWER THE REAR OF OUR LEAF TRUCKS.

HOW MUCH WAS THE KIT. I NEED THE DISCS TOO. MINE IS 4 WHEEL MANUAL DRUM.

Project1970 · 04-23-2003, 10:15 PM

I think I had somewhere between $1000 and $1500 into the whole thing; I also stuck with the 6-lug rotors, which cost a little more than the 5-lug versions.

They're not de-arched, they're completely new srpings; IIRC, there's only three leaves, and a stack of plates in the middle so you still use the stock-size U-bolts. Buy new U-bolts, though; two of mine flat-out broke when I tried to take them off!

Looking at them, you'd think they wouldn't be as stiff...well...they are, and they still haul a load just fine.

dinnut · 04-23-2003, 10:33 PM

did you spend that extra money on parts? brakes? or what. i really need to know because my budget it really limited.
it should something like what is attached? its not my truck.... probably came off this site. i am wondering.

Project1970 · 04-23-2003, 11:54 PM

Okay, here's what I got:

’63-’70 C-10 Drop Spindle/6 Lug Disc Brake Conversion Kit $899.00
02-6392-4LF ’63-’72 GMC 4" Drop Rear Leaf Spring Assemblies $349.00 pr. (which is a misnomer...GMC's were factory coils too!)
02-7002 ’63-’72 C-10 KYB Nitrogen Gas Front Shocks $35.00 ea.
02-7510 ’63-’72 C-10 KYB Nitrogen Gas Rear Shocks $35.00 ea.
2 each of those, except at the time, they were selling BellTech NitroDrops instead.

That right there is almost $1400...add $30 for UBolts, and other money for front end parts (get them elsewhere than ECE if you need to save money; they're not cheap and they admit it, they just offer the stuff conveniently set up in one package).

If you really wanted to...you could probably do it with just the spindles and some of the line adapters. I think everything else is an off-the-shelf original-style part (for a '71, that is), from Raybestos or ACDelco. (Good stuff.) I'd give them a call; they would probably be willing to work with you on that.

Oh, and budget in new rear wheel cylinders as well. It's apparently not uncommon to blow those up once you get this whole setup in there (mine failed, and I've seen others post extremely similar problems).

ECE is not the cheapest, I think some of the board vendors could beat them on price (GMCPaul's comes to mind) but they are certainly worth it. (This is not meant to rip on the board vendors at all; I've read nothing but great things about GMCPaul and his service/product, I just didn't even know about him / this board in 1999 when I did the swap!)

04-22-2003, 08:35 PM	#1
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	4/6 drop.... anyone done the 4/6 drop from early classic. i got a 72 with power steering but no power breaks... 72 chevelle 350 2bbl that needs a lot of work... if not early classic who should i go with? __________________ 70 longbed 496/th400/Ford 9" Last edited by dinnut; 04-23-2003 at 10:34 PM.

04-22-2003, 10:41 PM	#2
73stepside Registered User Join Date: Feb 2002 Location: Moore OK 73160 Posts: 974	a lot of guys are running early classics 4/6 drops. they seemed to be very pleased with fit and finish of the whole kit. that's the kit i'm getting. __________________ 04 GMC Sierra RCSS 70 CST LWB 04 HD Sportster 1200 Custom

04-22-2003, 11:13 PM	#3
Project1970 14.1 @ 96MPH Join Date: Jul 2001 Location: Mesa, AZ Posts: 2,811	I have an ECE 2.5/4 drop, which included a disc swap for the front and leaves (factory leaf truck) for the rear. Just rolled 30,000mi (installed at 104k, now 134k!) and haven't even had to change a thing with it yet! __________________ Project1970 - LS1 Swap Complete!

04-23-2003, 08:59 AM	#4
superchevy Got big-block? Join Date: Jul 2000 Location: Austin, Texas Posts: 2,453	My ECE 4/6 drop kit should be here any day now. I'll post pics of the install on my 68/72. __________________ '68 CST SWB factory 396/T400 buddy buckets, a/c, ps, pb '72 Corvette convertible 454/4spd/ac, ps, pb '73 GMC Sierra Grande short wide 454/T400 ps, pb, ac '77 K5 Blazer black on red, 350/T350/NP205 ps, pb, ac all original '78 GMC Sierra Classic short wide 454/T400 ps, pb, ac '72 GMC Sprint SP454. 1 of 38 built. '73 GMC Sprint SP454. 1 of 71 built. '75 GMC Sprint SP454. 1 of 25 built. SOLD! '72 GMC K25 4x4 468/4L80e/NP205 build thread http://67-72chevytrucks.com/vboard/s...23#post4324423 SOLD!'55 Chevy gasser 496/4spd build thread http://67-72chevytrucks.com/vboard/s...96#post4324396

04-23-2003, 12:06 PM	#6
crazy4chevs Registered User Join Date: Oct 2002 Location: Des Moines WA. (Kent, area) Posts: 668	4/6 drop ECE 4/6 drop Im working on the cab and body so no together pics, but this might help. Attached Images __________________ 70 chev c10 swb fleet 72 grill, sb 400, 2/4 drop. 68 chev c10 swb fleet Early classic 4/6 drop with 4wheel disc brakes 9"rear 67-8 buckets tilt and A/C Classic GM Truck Club of Washington . Last edited by crazy4chevs; 04-23-2003 at 12:15 PM.

04-23-2003, 12:02 PM	#5
LowSeventy Registered User Join Date: Jul 2002 Location: Pasadena, CA Posts: 67	I've got their 3.5/6 drop on my 70 shortbed and love it. It actually rides better than it did when it was stock. I would highly recommend them and their kit, they are very knowledgeable and easy to work with. It was real nice to buy a kit and everything actually fit, unlike some of the junk that I bought for my rig. Good luck

04-23-2003, 08:23 PM	#7
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	thanks thanks. i think im gonna go for the early classic kit. now all i need is 800 bucks... Attached Images

04-23-2003, 10:15 PM	#9
Project1970 14.1 @ 96MPH Join Date: Jul 2001 Location: Mesa, AZ Posts: 2,811	I think I had somewhere between $1000 and $1500 into the whole thing; I also stuck with the 6-lug rotors, which cost a little more than the 5-lug versions. They're not de-arched, they're completely new srpings; IIRC, there's only three leaves, and a stack of plates in the middle so you still use the stock-size U-bolts. Buy new U-bolts, though; two of mine flat-out broke when I tried to take them off! Looking at them, you'd think they wouldn't be as stiff...well...they are, and they still haul a load just fine. __________________ Project1970 - LS1 Swap Complete!

04-23-2003, 10:33 PM	#10
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	did you spend that extra money on parts? brakes? or what. i really need to know because my budget it really limited. it should something like what is attached? its not my truck.... probably came off this site. i am wondering. Attached Images __________________ 70 longbed 496/th400/Ford 9"

04-23-2003, 11:54 PM	#11
Project1970 14.1 @ 96MPH Join Date: Jul 2001 Location: Mesa, AZ Posts: 2,811	Okay, here's what I got: ’63-’70 C-10 Drop Spindle/6 Lug Disc Brake Conversion Kit $899.00 02-6392-4LF ’63-’72 GMC 4" Drop Rear Leaf Spring Assemblies $349.00 pr. (which is a misnomer...GMC's were factory coils too!) 02-7002 ’63-’72 C-10 KYB Nitrogen Gas Front Shocks $35.00 ea. 02-7510 ’63-’72 C-10 KYB Nitrogen Gas Rear Shocks $35.00 ea. 2 each of those, except at the time, they were selling BellTech NitroDrops instead. That right there is almost $1400...add $30 for UBolts, and other money for front end parts (get them elsewhere than ECE if you need to save money; they're not cheap and they admit it, they just offer the stuff conveniently set up in one package). If you really wanted to...you could probably do it with just the spindles and some of the line adapters. I think everything else is an off-the-shelf original-style part (for a '71, that is), from Raybestos or ACDelco. (Good stuff.) I'd give them a call; they would probably be willing to work with you on that. Oh, and budget in new rear wheel cylinders as well. It's apparently not uncommon to blow those up once you get this whole setup in there (mine failed, and I've seen others post extremely similar problems). ECE is not the cheapest, I think some of the board vendors could beat them on price (GMCPaul's comes to mind) but they are certainly worth it. (This is not meant to rip on the board vendors at all; I've read nothing but great things about GMCPaul and his service/product, I just didn't even know about him / this board in 1999 when I did the swap!) __________________ Project1970 - LS1 Swap Complete!



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