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#1 |
Registered User
Join Date: Sep 2017
Location: Center Point, Iowa
Posts: 82
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Lowering Ignorance
So many ways - so much confusion. 72 C10. Rides & drives great. 1 lowering blocks on rear. It sets level. Id like to lower it 3 front & back. Can it be as simple as 3 lowering springs and new shocks all around, or is it more complicated than that? Thanks in advance.
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#2 |
Registered User
Join Date: Aug 2015
Location: Alcoa;Tn
Posts: 208
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Re: Lowering Ignorance
If you If you do 2 1/2 drop spindles your geometry willbe better. I think someone sells 3 inch spindles also. You will not have to run shorter drop schocks which will have less stroke for more suspension travel.
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'71 Cheyenne Super LWB - Second Owner in 39 Years! '70 CST/10 SWB - Soon to be Daughter's truck when finished Last edited by 71cheyennesuperlongb; 10-01-2017 at 11:46 PM. Reason: forget to mention this |
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#3 |
Registered User
Join Date: Sep 2017
Location: LaGrange, MO
Posts: 9
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Re: Lowering Ignorance
I'm wondering the same thing. i cut a coild off my truck and it still sets pretty dang high. i was almost thinking maybe someone put big block spring or something in my truck. it rides HIGH. i just ordered 3" lowering springs last night going to see what they do if thats not low enough i will buy the spindles just sucks its about 250 dollars for the spindles compared to 100 dollars for the springs.
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#4 |
Registered User
Join Date: Aug 2013
Location: Calgary, Alberta
Posts: 681
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Re: Lowering Ignorance
As far as I know, 2" is about the most for front drop springs, and 6" is about the most for rear drop springs. This is what i have, plus 2.5" front drop spindles for a total of 4.5" up front. I also have an extra 1/2" lowering block in the back. CPP has shocks to go along with the corresponding travel available after this type of drop, listed on their site.
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1972 Cheyenne Super SWB PS, PB, Tach, A/C, Tilt. Drivetrain: Built 402BB, TCI Streetfighter 700R4, 2,500 stall, Eaton posi, 3.73. Suspension/Chassis: ECE 4.5/6.5 drop, CPP nitrogen shocks, CPP front and rear sway bar, CPP cross members. Exhaust: 3" exhaust with x-pipe, Spintech 3000 mufflers, Hooker ceramic coated headers. Best 1/4 mile time: TBD. |
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#5 | |
Senior Member
![]() Join Date: Sep 2016
Location: Omaha Nebraska
Posts: 588
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Re: Lowering Ignorance
Quote:
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#6 |
Registered User
Join Date: Aug 2013
Location: Calgary, Alberta
Posts: 681
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Re: Lowering Ignorance
275/60/15 all around.
Here are some suspension kits to consider: http://www.earlyclassic.com/catalog....ry=Drop%20Kits. I was not happy with the ride of the ECE included shocks, so I've just installed some CPP shocks to replace them.
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1972 Cheyenne Super SWB PS, PB, Tach, A/C, Tilt. Drivetrain: Built 402BB, TCI Streetfighter 700R4, 2,500 stall, Eaton posi, 3.73. Suspension/Chassis: ECE 4.5/6.5 drop, CPP nitrogen shocks, CPP front and rear sway bar, CPP cross members. Exhaust: 3" exhaust with x-pipe, Spintech 3000 mufflers, Hooker ceramic coated headers. Best 1/4 mile time: TBD. |
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#7 |
Registered User
Join Date: Sep 2017
Location: Center Point, Iowa
Posts: 82
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Re: Lowering Ignorance
Thanks for the replies so far. How’s this look? https://www.classicindustries.com/pr...cssk6372a.html
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#8 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
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Re: Lowering Ignorance
That's the economical way to go, and easier than spindle change. 3" is the max spring drop to be able to still align properly.
I thought this was going to be a thread for a think tank type discussion of how to lower the amount of ignorance in the world. The world could use it ya know ![]()
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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#9 |
Registered User
Join Date: Sep 2017
Location: Center Point, Iowa
Posts: 82
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Re: Lowering Ignorance
If I already have 1 blocks in the rear and want to lower 3 from there, should I remove the block and get 4 dropped springs, or keep it and get 3 springs?
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#10 |
Registered User
Join Date: Aug 2013
Location: Calgary, Alberta
Posts: 681
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Re: Lowering Ignorance
4" springs will give you more travel (this is good) then a 3" spring + block.
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1972 Cheyenne Super SWB PS, PB, Tach, A/C, Tilt. Drivetrain: Built 402BB, TCI Streetfighter 700R4, 2,500 stall, Eaton posi, 3.73. Suspension/Chassis: ECE 4.5/6.5 drop, CPP nitrogen shocks, CPP front and rear sway bar, CPP cross members. Exhaust: 3" exhaust with x-pipe, Spintech 3000 mufflers, Hooker ceramic coated headers. Best 1/4 mile time: TBD. |
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#11 |
Special Order
![]() ![]() Join Date: Nov 2004
Location: Mt Airy, MD
Posts: 85,859
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Re: Lowering Ignorance
Any time you can eliminate the blocks it is a good thing. They are an ok thing to do, but you are putting the trailing arms lower to the ground, reducing ground clearance...scrub point. Using all spring changes nothing from stock trailing arm clearance to ground.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~ |
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#12 |
Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,720
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Re: Lowering Ignorance
This is funny. I'm usually the guy trying to get Tim to ditch the blocks! LOL On 4x4 I am not a fan, but on the 2x4 I think they are an ok solution. With some caveats.
I'm working through this in my head, but the tire height dictates the clearance to the trailing arm, and the blocks will move the axle up decreasing clearance to the ground for the arm by the thickness of the block. So if you are running 29" tall tires you won't have any less clearance than a guy running 27" tall tires, but definitely something to consider. 3" spring seems to be the limit to how short a coil you can go and still be able to get full adjustability to align the front. IMO, the spindles are a much better solution. By themselves for a 2 1/2" or 3" drop depending on manufacturer then add a 1" or 2" spring if you want to go lower. Once again, IMO, 4 1/2" is about the limit for a static drop without hurting the driveability of the truck in anyway. I have a '71 big block GMC long bed C10 sitting in my driveway right now and am pondering dropping it as well. It is a coil spring truck and my initial thoughts are spindles with a 1" spring and 5" coils for the rear. Keeping the blocks in my back pocket to adjust final front/rear rake. But coils are cheap enough that just a second set may be the better choice. All of this I guess is why I still haven't ordered any parts. ![]()
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44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
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#13 | |
Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: Lowering Ignorance
Quote:
I used this kit: http://www.classicperform.com/Store/...6372CSSK-D.htm And spindles don't like 15" rims and sometimes require a notch in the lower control arm to prevent spitting the weights off. If I go lower it will be spindles and another 1" on the block for a 2".
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"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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#14 |
Registered User
Join Date: Sep 2017
Location: Center Point, Iowa
Posts: 82
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Re: Lowering Ignorance
Appreciate all the info so far. With a 1 block and 3 springs do you need to relocate the shock mounts? Same question if no block and 4 springs. Thanks again.
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#15 |
Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: Lowering Ignorance
You don't have to do anything, but you "should" relocate the shock mounts for the shocks to work. That is why i sent the link for the kit I used. new mounts, shocks, pan hard bar. All the stuff you need to lower it properly.
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"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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#16 |
Registered User
Join Date: Sep 2017
Location: Center Point, Iowa
Posts: 82
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Re: Lowering Ignorance
Any pics of 72 full size bed lowered 3 front & rear?
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#17 |
Registered User
Join Date: Aug 2013
Location: Calgary, Alberta
Posts: 681
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Re: Lowering Ignorance
You will find some in here: http://67-72chevytrucks.com/vboard/s...d.php?t=471442
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1972 Cheyenne Super SWB PS, PB, Tach, A/C, Tilt. Drivetrain: Built 402BB, TCI Streetfighter 700R4, 2,500 stall, Eaton posi, 3.73. Suspension/Chassis: ECE 4.5/6.5 drop, CPP nitrogen shocks, CPP front and rear sway bar, CPP cross members. Exhaust: 3" exhaust with x-pipe, Spintech 3000 mufflers, Hooker ceramic coated headers. Best 1/4 mile time: TBD. |
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#18 |
Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: Lowering Ignorance
Mine is a 70 long bed.
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"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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#19 | |
Divorced .....WITH KIDS
Join Date: Dec 2003
Location: mississippi
Posts: 619
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Re: Lowering Ignorance
Quote:
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1969 GMC SWB 1975 Chevy Malibu 80k 1963 Ford Galaxie 63k (inherited) 2005 Nissan Armada (wife's idea) |
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#20 |
Registered User
Join Date: Sep 2017
Location: Center Point, Iowa
Posts: 82
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Re: Lowering Ignorance
Truck rides great. New tires - which have somehow led to lowering. Just spent some bucks. 3 springs in front, 4 in rear. KYB shocks. Shock relocate stuff & adj. trac bar. Fun starts next week. Thanks for all the help
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#21 |
Registered User
Join Date: Aug 2013
Location: Calgary, Alberta
Posts: 681
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Re: Lowering Ignorance
With the ECE included KYB shocks, it was good for a while but became bouncy after I believe the shocks wore out (less then 3000mi). I just replace the KYBs with CPP shocks and have 60 miles of seat time with them now. They're stiffer and not bouncy. When I took the KYBs out, I could compress them by hand and they would not extend on their own, maybe a sign that they became shot even with few miles. I expect the CPPs to hold up better. If I had more money, I'd get the RideTech shocks, by Fox, which the ECE guys use on their personal trucks.
__________________
1972 Cheyenne Super SWB PS, PB, Tach, A/C, Tilt. Drivetrain: Built 402BB, TCI Streetfighter 700R4, 2,500 stall, Eaton posi, 3.73. Suspension/Chassis: ECE 4.5/6.5 drop, CPP nitrogen shocks, CPP front and rear sway bar, CPP cross members. Exhaust: 3" exhaust with x-pipe, Spintech 3000 mufflers, Hooker ceramic coated headers. Best 1/4 mile time: TBD. |
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