What would you do? Lowering rear - The 1947 - Present Chevrolet & GMC Truck Message Board Network

70c10 · 12-04-2005, 10:57 AM

I want to lower my truck in the rear (either 4" or 5") with either a 4" spring plus a 1" block OR just a 5" spring. I was thinking if the 4" spring wasn't low enough I could always buy a 1" block to bring it down more. I run 275/60/15 on 8" rims. If you have pics of a 4" or 5" rear drop in my tire/rim combo, please post pics.

pissonNOS · 12-04-2005, 12:00 PM

heres mine i just used stock coils out back and put in a 2 inch block those are 275/60 tires as well

ChevLoRay · 12-04-2005, 12:03 PM

Since you have a Chevy, your truck SHOULD have coils. Early Classic Enterprises has both 4 and 5-inch lowering springs. I have their 4-inch coils on my SWB. I would recommend using the spring ONLY and not adding a block. It's simply not necessary. Buy the right size spring and Git-R-Done!!

When you lower the rear, you will also have to modify your track bar, or buy an adjustable one. Lowering the truck, will cause the axle ass'y to move toward one side of the body, instead of remaining centered under the chassis.

Also, lowering it the amount you want, will cause the angles at which the shocks are, to change. Either change ( 4 or 5-inches) will severely affect their operation.

On the outside chance that your truck was equipped with the optional leaf springs, you have other options and everything I cited above is moot.

70c10 · 12-04-2005, 01:41 PM

pissonNOS- it looks like your bolts are about 1" off the ground with those blocks!. I forgot about that clearance wise. Thanks for the pic. Nice truck.

ChevLoRay- My dads 70' is lowered with 4" springs in the back (no shock relocators) and it rides great. I can't remember his tire size with his 8" rally's. My tire is a little wider and shorter. If I go 5" I will buy the relocators for sure. Since his truck is lowered already maybe I should just put my 2 rims on his truck and see how it looks!. We both have 70' longbeds with coils.

pissonNOS · 12-04-2005, 02:21 PM

they are pretty close to the ground but i am also parked on the grass in that pic so that doesnt help the perception, on the other hand i never have bottomed out with them yet

Z28Owner · 12-04-2005, 07:34 PM

I just ordered the ECE rear lowering kit. I went with the 6 inch spring but you can get a 5 inch too came with shock relocaters and new panhard bar and everything was top notch well worth the money.

WHYBYNU · 12-04-2005, 08:20 PM

Here is mine dropped 3.5/5.5 front is with spindals & springs and rear is 4" springs and 1.5" blocks.. I run 275/60/15 on the rear with 255/60/15 fronts it sits perfect to me with this combo....

JOHN

70c10 · 12-04-2005, 11:59 PM

Nice truck John!. Did you use shock relocators also?

WHYBYNU · 12-05-2005, 01:59 AM

I did add the shock relocators. I have no complaints with the ride at all. I'm very happy with this set up ! Thanks for the compliments.

JOHN

70c10 · 12-07-2005, 08:50 AM

Anybody else care to post pics of their truck with 5" rear spring drop?. Thanks

paintpyro · 12-07-2005, 01:10 PM

Ask and you shall receive. 4 inch spring, and a one inch block, on a275/60/15 rally.

12-04-2005, 10:57 AM	#1
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,857	What would you do? Lowering rear I want to lower my truck in the rear (either 4" or 5") with either a 4" spring plus a 1" block OR just a 5" spring. I was thinking if the 4" spring wasn't low enough I could always buy a 1" block to bring it down more. I run 275/60/15 on 8" rims. If you have pics of a 4" or 5" rear drop in my tire/rim combo, please post pics. __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

12-04-2005, 12:00 PM	#2
pissonNOS senior member Join Date: Feb 2003 Location: fort macleod alberta Posts: 2,770	Re: What would you do? Lowering rear heres mine i just used stock coils out back and put in a 2 inch block those are 275/60 tires as well Attached Images __________________ 69 GMC bagged Last edited by pissonNOS; 12-04-2005 at 12:00 PM.

12-04-2005, 12:03 PM	#3
ChevLoRay Old Skool Club Join Date: Jun 2001 Location: Benton, AR "The Heart of Arkansas" Posts: 10,880	Re: What would you do? Lowering rear Since you have a Chevy, your truck SHOULD have coils. Early Classic Enterprises has both 4 and 5-inch lowering springs. I have their 4-inch coils on my SWB. I would recommend using the spring ONLY and not adding a block. It's simply not necessary. Buy the right size spring and Git-R-Done!! When you lower the rear, you will also have to modify your track bar, or buy an adjustable one. Lowering the truck, will cause the axle ass'y to move toward one side of the body, instead of remaining centered under the chassis. Also, lowering it the amount you want, will cause the angles at which the shocks are, to change. Either change ( 4 or 5-inches) will severely affect their operation. On the outside chance that your truck was equipped with the optional leaf springs, you have other options and everything I cited above is moot. __________________ Member Nr. 2770 '96 GMC Sportside; 4.3/SLT - Daily driven....constantly needs washed. '69 C-10 SWB; 350/TH400 - in limbo The older I get, the better I was.

12-04-2005, 01:41 PM	#4
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,857	Re: What would you do? Lowering rear pissonNOS- it looks like your bolts are about 1" off the ground with those blocks!. I forgot about that clearance wise. Thanks for the pic. Nice truck. ChevLoRay- My dads 70' is lowered with 4" springs in the back (no shock relocators) and it rides great. I can't remember his tire size with his 8" rally's. My tire is a little wider and shorter. If I go 5" I will buy the relocators for sure. Since his truck is lowered already maybe I should just put my 2 rims on his truck and see how it looks!. We both have 70' longbeds with coils. __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

12-04-2005, 02:21 PM	#5
pissonNOS senior member Join Date: Feb 2003 Location: fort macleod alberta Posts: 2,770	Re: What would you do? Lowering rear they are pretty close to the ground but i am also parked on the grass in that pic so that doesnt help the perception, on the other hand i never have bottomed out with them yet __________________ 69 GMC bagged

12-04-2005, 07:34 PM	#6
Z28Owner ......................... Join Date: Nov 2001 Location: benton, ky Posts: 288	Re: What would you do? Lowering rear I just ordered the ECE rear lowering kit. I went with the 6 inch spring but you can get a 5 inch too came with shock relocaters and new panhard bar and everything was top notch well worth the money. __________________ 1971 LWB Chevy C-10 350/350 3:42 eaton

12-04-2005, 08:20 PM	#7
WHYBYNU WHYBYNU when old will do Join Date: Feb 2002 Location: Hot Springs, AR. Posts: 643	Re: What would you do? Lowering rear Here is mine dropped 3.5/5.5 front is with spindals & springs and rear is 4" springs and 1.5" blocks.. I run 275/60/15 on the rear with 255/60/15 fronts it sits perfect to me with this combo.... JOHN Attached Images __________________ 71 Cheyenne super 2 tone green and white ZZ6 - Th350 4/6 drop 20x8.5 / 20x10 Billet Specialties

12-04-2005, 11:59 PM	#8
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,857	Re: What would you do? Lowering rear Nice truck John!. Did you use shock relocators also? __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

12-05-2005, 01:59 AM	#9
WHYBYNU WHYBYNU when old will do Join Date: Feb 2002 Location: Hot Springs, AR. Posts: 643	Re: What would you do? Lowering rear I did add the shock relocators. I have no complaints with the ride at all. I'm very happy with this set up ! Thanks for the compliments. JOHN __________________ 71 Cheyenne super 2 tone green and white ZZ6 - Th350 4/6 drop 20x8.5 / 20x10 Billet Specialties

12-07-2005, 08:50 AM	#10
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,857	Re: What would you do? Lowering rear Anybody else care to post pics of their truck with 5" rear spring drop?. Thanks __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

12-07-2005, 01:10 PM	#11
paintpyro Registered User Join Date: Aug 2001 Location: Santa Fe Springs, CA,USA Posts: 1,579	Re: What would you do? Lowering rear Ask and you shall receive. 4 inch spring, and a one inch block, on a275/60/15 rally. __________________ 70 shortbed stepside "Schleprock" 350 w/TH400 rallys and BFGs -We can rebuild it, we have the technology-lower,shinier,faster



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