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#26 | |
Registered User
Join Date: Mar 2016
Location: Long Island NY
Posts: 598
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Re: Lowering Regrets
Quote:
I recommend pulling a wheel and jacking up the truck to ride height by the lower suspension arm as close to the spindle as you can. Measure the shock from center of each bolt and write it down, remove the shock, fully compress it and measure again, let us know what the measurements are. Also take a pic of the spring and note how much space is between the coils. Spring is most likely the culprit but it doesn’t take much to check the shock as well. |
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#27 | |
Hittin E-Z Street on Mud Tires
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Location: Greenville, SC
Posts: 23,090
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Re: Lowering Regrets
I stated with the same drop you did, 4.5/6 and I thought the nose was too low, I didn't like it. I added a 3/8" spacer to the front spring.
You don't have to remove anything on the front control arms with your drop, just trim the bump stops. Trim rear as well. Put 15's back on. With the 2.5" spindle you will have to trim the A-Arm a bit. I was unhappy with mine until I put a better quality shock on the truck. Much better. Still doesn't ride as good as stock on "crappy roads" but for the most part, I can't tell the difference anymore. Quote:
Also make sure you got the front springs inside the pocket. The coil does have a spot it's supposed to sit in top and bottom.
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 06-19-2019 at 11:38 AM. |
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#28 |
Registered User
Join Date: Jan 2010
Location: nevada
Posts: 649
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Re: Lowering Regrets
Before buying 4 new 15' wheels if that's your plan. Check and make sure they fit. I put 2.5" drop spindles on mine and the wheel rubbed the tie rod. I know others have had the same issue, so its common.
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2003 Dodge 2500 1969 C10 2014 Camaro SS/RS/1LE |
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#29 |
67-72 parts collector,…
![]() Join Date: Nov 2002
Location: Mid-MO
Posts: 22,698
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Re: Lowering Regrets
15” wheels that rub tie rods or the lower a-arm is directly related to the wheels backspacing. To talk apples and apples you have to compare that number also.
Usually a 3.5” bs on a 15” wheel clears fine. A 4” or greater bs on a 15” wheel causes some clearance issues.
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Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 |
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#30 | |
Registered User
Join Date: Jan 2010
Location: nevada
Posts: 649
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Re: Lowering Regrets
Quote:
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2003 Dodge 2500 1969 C10 2014 Camaro SS/RS/1LE |
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#31 |
Hittin E-Z Street on Mud Tires
![]() Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: Lowering Regrets
I trimmed mine. Up front I have a 15x7 with what I think is 3.5-4" BS, can't remember (the 15x8s i had with 4.5" BS definitely did NOT fit).
I was afraid to at first, but a bunch of other members talked me into it. Almost 4 years later truck is fine still.
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! |
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#32 |
Senior Member
![]() Join Date: Sep 2007
Location: Albuquerque NM
Posts: 7,848
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Re: Lowering Regrets
i did everything the OP did on my truck and no issues at all. but I am running 15`s. I can see how 20`s could be a problem feeling every bump. what manufacturer springs did you use?
just read. CPP that might be an issue. they sell Chevelle rear springs as 4" lowered truck rear springs. softer mushier ride for sure. iu used POL. good stuff
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1967custom Last edited by michael bustamante; 06-19-2019 at 03:38 PM. |
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#33 |
Senior Member
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Location: Albuquerque NM
Posts: 7,848
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Re: Lowering Regrets
I have 15x7 with 245 70 15s.. no rubbing. now 15x8 on a drop spindle? that would be too close for comfort
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#34 | |
Registered User
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Location: Durham, North Carolina
Posts: 782
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Re: Lowering Regrets
Quote:
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#35 |
Registered User
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Location: Durham, North Carolina
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Re: Lowering Regrets
Where did you get the spacers you mention? Weighing a lot of options and I can't clear 45 series tires in the front now as they are too far in the fenders but if I had another 1/2" or so I could.
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#36 |
Registered User
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Location: Durham, North Carolina
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Re: Lowering Regrets
Yeah, the springs seemed to have sagged a lot. I have 4" from control arm to control arm and 3" axle to frame. My tires in the front are nervously close to hitting the fender in a turn if any bumps are hit.
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#37 |
Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: Lowering Regrets
I put 3" springs in front and 3" springs in rear with 1" block. I cut both stops in half and have had a pretty decent ride. The 70 series 15" tires really help with the ride as well.
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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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#38 |
Post Whore
![]() Join Date: Feb 2016
Location: Portland Oregon
Posts: 11,137
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Re: Lowering Regrets
If there is play in the lower control arm bushings you can get loud clangs and bangs from the front end. Lift the front end and compress the front springs enough (use a coil spring compressor)so the preload from the spring is removed from the lower control arm. Then try to move the arm around with a large dead blow hammer. You should not be able to see the arm move around when you hit it.
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Thanks to Bob and Jeanie and everyone else at Superior Performance for all their great help. ![]() RIP Bob Parks. 1967 Burban (the WMB),1988 S10 Blazer (the Stink10 II),1969 GTO (the Goat), 1970 Javelin, 1952 F2 Ford OHC six 4X4, 29 Model A, 72 Firebird (the DBP Bird). 85 Alfa Romeo If it breaks I didn't want it in the first place The WMB repair thread http://67-72chevytrucks.com/vboard/s...d.php?t=698377 |
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#39 |
Registered User
Join Date: Mar 2005
Location: 10-Uh-See
Posts: 5,609
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Re: Lowering Regrets
I highlighted your issues in red. I've never been happy with Chinese Produced Products.
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#40 | |
Registered User
Join Date: Mar 2005
Location: 10-Uh-See
Posts: 5,609
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Re: Lowering Regrets
Quote:
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#41 |
Registered User
Join Date: Apr 2014
Location: Azle,Texas
Posts: 2,248
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Re: Lowering Regrets
My recommendation is to change the front spring, sell the 20’s, (only because you said you like the rallies better) and buy 17” rallies with a lot taller side wall. I can’t remember what exact size you currently have in front, but you get the idea... I love this tire size comparison website. I use it pretty often. If you had another 2 inches of sidewall I think your ride would be way better.
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Brian 1972 C10, "Loyd", LWB to SWB, 5.3, L83/6L80e, 4:11 Tru Trac, Air Ride, VA, DD, 20" Coys, 4 wheel disc, A quick LS swap turned into a 6 year frame off resto-mod. |
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#42 |
Registered User
Join Date: Jun 2012
Location: Portland
Posts: 1,330
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Re: Lowering Regrets
I second or third the idea of going with new front springs, stock height or lowered. I went with CPP spindles because they're one of the only games in town, but otherwise I avoid their stuff.
Most foreign springs are made from 1 of two factories, and they're not always precise, both in height and stiffness. Grab something like a hotchkis spring if you are buying replacements. |
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#43 |
Registered User
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Location: Durham, North Carolina
Posts: 782
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Re: Lowering Regrets
I think you are on point, I walk out in the morning and it just keeps settling further and further. I have coils in the rear completely collapsed and laying on the trailing arm.
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#44 |
Registered User
Join Date: Jun 2012
Location: Portland
Posts: 1,330
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Re: Lowering Regrets
Can try taking some photos and getting your money back, but CPP's customer support is notoriously bad, so I wish you luck with that
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#45 |
Registered User
Join Date: Apr 2014
Location: Azle,Texas
Posts: 2,248
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Re: Lowering Regrets
Yep those springs are crap... on the bright side new set of quality springs aren’t that much money and they may give you the ride and height you’re looking for. The expensive alignment is a bummer though.
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Brian 1972 C10, "Loyd", LWB to SWB, 5.3, L83/6L80e, 4:11 Tru Trac, Air Ride, VA, DD, 20" Coys, 4 wheel disc, A quick LS swap turned into a 6 year frame off resto-mod. |
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#46 | |
Registered User
Join Date: Mar 2005
Location: 10-Uh-See
Posts: 5,609
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Re: Lowering Regrets
Quote:
I had the 4.5/6.75 drop on my truck before with ECE parts on 17" tires. I never had any real complaints with ride or handling. Due to the nature of driving a lowered truck, there were certain speed bumps and driveways I had to be careful on, but no more than with a car of any sort. ![]()
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#47 |
Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,177
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Re: Lowering Regrets
i lowered a 60 with torsion bars with drop spindles and 4" rear springs. It rides nice but is kinda rough, Guess its the 22" steel wheels with the rubber bands for tires.
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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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#48 |
Registered User
![]() Join Date: Jan 2018
Location: Durham, North Carolina
Posts: 782
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Re: Lowering Regrets
From what I am gathering I could use 15x7 Rallye wheels on the front and they would clear my drop spindles? I assume I was running 15x8 but I never measured them before I sold them as I didn't know there was a 7 and 8" wide version. I do know the inner lip of the wheel drug badly on my spindle where the tie rod connects. I also had 255/70/15 tires all around but I am not so sure that means I had 8" wheels as a myriad of tires fit any wheel.
Anyways, I am thinking then I can go back and collect all the components of Rallye wheels (tires, caps, trim rings, rims) in a 15x7 front and 15x8 rear. Then I can put stock springs on the front and 3" springs on the rear (ECE not CPP) and I should have some decent functionality back. I wonder what the value is on a set of 20" wheels/tires with a couple hundred miles on them are...the potential loss on this makes my stomach turn.
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#49 | |
Who Changed This?
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Location: Simi Valley, CA
Posts: 10,399
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Re: Lowering Regrets
Quote:
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#50 |
Hittin E-Z Street on Mud Tires
![]() Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: Lowering Regrets
The coil springs front and rear should only be around $250 total. I wouldn't toss your wheels and tires yet. Try out the new springs before swapping everything out.
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! |
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