ECE Drop issues need help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

longorange68 · 09-14-2012, 12:08 PM

Hey guys, installed a 3.5/5 drop on my long box and it looks great! Bought a complete kit with disc brake conversion, shocks, drop coils, adjustable bar, and shock relocator. Went together pretty easy in my garage, and at the same time I freshened up the front end with new steering box, and suspension components. Had it professionally aligned and had the shop also double check my adjustment of the bar in the rear.

Ran into a few problems that I didn't expect.

1) suspension seems very soft over bumps. My truck seems to move very easily at the slightest bump in the road, really weird. The stock suspension never did this, so now I am concerned that I may have done something wrong during the install. I did use KYB shocks for lowered applications. The front end dives hard after bumps and will occasionally cause the inner fender to rub on the tire.

2) I am running 29 inch tall tires on the truck, only because that's what was on it before I lowered it. I will be putting on 275/60r15's in the back on 15x8 inch rims. I have 15x7 inch rims for the front to account for the widened track, but I'm trying to decide what size of tire to use. I had thought about 235/70r15's up front but they are 28 inches tall. I'm concerned that if in fact the suspension is supposed to move like it does, the 28 inchers up front will still rub. The other hand I don't want to have the truck raked out with taller rubber in the back and shorter rubber up front.

Anybody run into these issues before? In a holding pattern right now...
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j ripper · 09-14-2012, 02:20 PM

Give them a call. They are very helpful. I just called them 20 min ago with a tech question.
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suspect · 09-14-2012, 07:00 PM

you may just need to try a stiffer shock.

longorange68 · 09-14-2012, 07:56 PM

Any comments on my tire size up front?
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**Already Gone** · 09-14-2012, 09:11 PM

Please some pics of your lowered truck. 3 1/2 frt and 5 rear is what I've wanted to do to mine and I am running P255/70r15's on all 4 corners. With that drop I am pretty sure if you run the same tire size on all 4 corners you will pretty much level out the truck.
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longorange68 · 09-15-2012, 10:31 PM

I'll work on posting pics A.G. I really need a little tire size help up front though, anybody have any gems of knowledge to pass on?
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**Tim Christian** · 09-16-2012, 09:25 AM

I always liked a 225/70/15 up front and a 285/70/15 in the back

Fizoust · 09-27-2012, 03:31 AM

Im eager to yank off my airbag kit and throw an ECE static drop on my truck.
Did you find anything out about the soft ride?

09-14-2012, 12:08 PM	#1
longorange68 Registered User Join Date: Apr 2006 Location: Hockinson, Washington Posts: 115	ECE Drop issues need help Hey guys, installed a 3.5/5 drop on my long box and it looks great! Bought a complete kit with disc brake conversion, shocks, drop coils, adjustable bar, and shock relocator. Went together pretty easy in my garage, and at the same time I freshened up the front end with new steering box, and suspension components. Had it professionally aligned and had the shop also double check my adjustment of the bar in the rear. Ran into a few problems that I didn't expect. 1) suspension seems very soft over bumps. My truck seems to move very easily at the slightest bump in the road, really weird. The stock suspension never did this, so now I am concerned that I may have done something wrong during the install. I did use KYB shocks for lowered applications. The front end dives hard after bumps and will occasionally cause the inner fender to rub on the tire. 2) I am running 29 inch tall tires on the truck, only because that's what was on it before I lowered it. I will be putting on 275/60r15's in the back on 15x8 inch rims. I have 15x7 inch rims for the front to account for the widened track, but I'm trying to decide what size of tire to use. I had thought about 235/70r15's up front but they are 28 inches tall. I'm concerned that if in fact the suspension is supposed to move like it does, the 28 inchers up front will still rub. The other hand I don't want to have the truck raked out with taller rubber in the back and shorter rubber up front. Anybody run into these issues before? In a holding pattern right now... Posted via Mobile Device __________________ 1968 Chevrolet C-10, 2WD, Longbox, Vortec 350, 700R4, 3.73 gears Good judgment comes from experience, and experience, well......that comes from bad judgment. 1968 Chevy C-10 "Longshot": Bought used from my Uncle George in 1994 and proceeding to beat the hell out of it for 4 years. Sold it. Bought it back, dumped an ungodly amount of money into it since then.

09-14-2012, 02:20 PM	#2
j ripper Registered User Join Date: Jul 2010 Location: napa ca. Posts: 199	Re: ECE Drop issues need help Give them a call. They are very helpful. I just called them 20 min ago with a tech question. Posted via Mobile Device __________________ edited by staff

09-14-2012, 07:00 PM	#3
suspect Registered User Join Date: Jul 2011 Location: oklahoma city Posts: 692	Re: ECE Drop issues need help you may just need to try a stiffer shock. __________________ Daniel 68 C10 Build http://67-72chevytrucks.com/vboard/s...d.php?t=503594 Romans 10:13 Everyone who calls on the name of the Lord will be saved.

09-14-2012, 07:56 PM	#4
longorange68 Registered User Join Date: Apr 2006 Location: Hockinson, Washington Posts: 115	Re: ECE Drop issues need help Any comments on my tire size up front? Posted via Mobile Device __________________ 1968 Chevrolet C-10, 2WD, Longbox, Vortec 350, 700R4, 3.73 gears Good judgment comes from experience, and experience, well......that comes from bad judgment. 1968 Chevy C-10 "Longshot": Bought used from my Uncle George in 1994 and proceeding to beat the hell out of it for 4 years. Sold it. Bought it back, dumped an ungodly amount of money into it since then.

09-14-2012, 09:11 PM	#5
Already Gone 70+ ( Old Skool Club ) Join Date: Nov 2003 Location: Saskatoon, Saskatchewan ,Canada Posts: 9,143	Re: ECE Drop issues need help Please some pics of your lowered truck. 3 1/2 frt and 5 rear is what I've wanted to do to mine and I am running P255/70r15's on all 4 corners. With that drop I am pretty sure if you run the same tire size on all 4 corners you will pretty much level out the truck. Posted via Mobile Device __________________ 1972 C10 Custom/Deluxe 613 Highlander 406/700R4 1999 White Tahoe LS 4x2 with Z56 Police Package 1992 K1500 GMC Suburban Members I have personally met: MusicMan70 - HeavyD - ChewyChevy67 - StingRay -71SWB4x4 - 67 Burb - DeadheadNM - too much stuff - bc65 - das601 " Circumsatances Do Not Change Responsibility " " The Sky is not the Limit, Your Mind is." Marilyn Monroe .. RIP Charlie Watts 1941 - 2021

09-15-2012, 10:31 PM	#6
longorange68 Registered User Join Date: Apr 2006 Location: Hockinson, Washington Posts: 115	Re: ECE Drop issues need help I'll work on posting pics A.G. I really need a little tire size help up front though, anybody have any gems of knowledge to pass on? Posted via Mobile Device __________________ 1968 Chevrolet C-10, 2WD, Longbox, Vortec 350, 700R4, 3.73 gears Good judgment comes from experience, and experience, well......that comes from bad judgment. 1968 Chevy C-10 "Longshot": Bought used from my Uncle George in 1994 and proceeding to beat the hell out of it for 4 years. Sold it. Bought it back, dumped an ungodly amount of money into it since then.

09-16-2012, 09:25 AM	#7
Tim Christian Senior Member Join Date: Dec 1999 Location: TN/VA Posts: 6,388	Re: ECE Drop issues need help I always liked a 225/70/15 up front and a 285/70/15 in the back

09-27-2012, 03:31 AM	#8
Fizoust Registered User Join Date: Jan 2012 Location: Big Spring Tx Posts: 53	Re: ECE Drop issues need help Im eager to yank off my airbag kit and throw an ECE static drop on my truck. Did you find anything out about the soft ride?



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