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01-12-2017, 09:39 AM
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#1 |
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Registered User
Join Date: Jan 2014
Location: Cowpens S.C.
Posts: 138
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rear bounce
I have lowered my truck 5" with 3" coil springs & 2" blocks. I have relocated the shocks. New shocks. I still have a bounce in the rear end. Almost like no shocks. Any ideas?
Thanks, Lynn |
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01-12-2017, 10:34 AM
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#2 |
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Registered User
Join Date: Apr 2013
Location: South Westerlo, New York
Posts: 1,325
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Re: rear bounce
do you have the shocks as vertical as possible? if close as a 45 degree angle you won't get much travel on the shocks..
__________________
Thanks, Joe.. 1969 C/10, 348 C.I., 3X2 bbl. V8, 2004r , LWB. |
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01-12-2017, 11:06 AM
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#3 |
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Registered User
Join Date: Jan 2014
Location: Cowpens S.C.
Posts: 138
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Re: rear bounce
I used the CPP shock relocation kit. They are a lot better than they were, but no, not vertical.
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01-12-2017, 04:34 PM
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#4 |
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Registered User
 
Join Date: Sep 2010
Location: Winfield, Ks.
Posts: 4,162
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Re: rear bounce
do you have the short shocks or standard shock...
__________________
Dan Johnston... Owner of My Dad's- '67 Chevy C-20 Custom Camper Short Fleetside Pickup PAPA J And our newest addition a- '71 Chevy CST/10 Short Fleetside Pickup Haulin' SOLD Papa J's Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=612847 Haulin's Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=671130SOLD B Bears Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=744210 |
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01-12-2017, 04:38 PM
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#5 |
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Moderator
 
Join Date: May 2007
Location: Southern Cal
Posts: 20,031
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Re: rear bounce
If all else fails a couple bags of concrete in the bed will smooth out your ride.
__________________
1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man RIP FleetsidePaul |
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01-12-2017, 07:21 PM
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#6 |
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Senior Member
Join Date: Aug 2013
Location: Northern Santa Barbara County, California
Posts: 2,706
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Re: rear bounce
Try a different shock relocation kit? CCP kit moves them forward while the No Limit kit moves them to the rear.
http://www.classicperform.com/tech_a...-Solutions.htm http://nolimit.net/tech-center/67-c1...on-kit-1963-72 |
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01-12-2017, 08:59 PM
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#7 |
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Registered User
Join Date: Jan 2014
Location: Cowpens S.C.
Posts: 138
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Re: rear bounce
I have standard length shocks. I was under the impression stock shocks could be used. Did I assume wrong?
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01-12-2017, 11:21 PM
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#8 |
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Registered User
Join Date: Dec 2014
Location: Buck creek, sc
Posts: 90
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Re: rear bounce
hey 30 I,m from buck creek over near lake blalock
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01-13-2017, 09:32 AM
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#9 |
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Registered User
Join Date: Jan 2014
Location: Cowpens S.C.
Posts: 138
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Re: rear bounce
Lowbuck, been there many times.
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01-13-2017, 10:01 AM
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#10 | |
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Registered User
Join Date: Jul 2009
Location: Space Coast, Fl.
Posts: 1,055
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Re: rear bounce
Quote:
__________________
Dad always said, "Son, WISH IN ONE HAND, and ......." -------------------------------------- -------------------------------------- Current toy trucks: '71 GMC 1500 SUPER CUSTOM short/step, orig. dk. blue, 350/700r, ps,pb, A/C '72 Blazer 2wd, ochre & white, 454, tremecTKO 500 5spd. ps, pb, A/C, tilt Last 10yrs of hobby vehicles, had a FEW more in the 50yrs. before these: '66 Plymouth Belvedere City of Miami cop car clone. '70 Nova 406"sb, 13.5-1, solid roller, Brodix, p.glide/t.brake, back halved, 9" Ford, spool 4.88, cage,ladder bar/coilover, 10.5 tire....... SOLD!! '67 C10 short/step side mount spare -- SOLD!! '72 Jimmy 2wd, 350/350, ps, pb, fun driver, lots of bondo & a shiny red paint job..... SOLD!! '69 Nova 350, 4spd, A/C, ps, p.b, ...SOLD!! |
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01-13-2017, 12:18 PM
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#11 |
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Registered User
Join Date: Jan 2014
Location: Cowpens S.C.
Posts: 138
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Re: rear bounce
My 3" springs did not come with shocks.
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01-13-2017, 09:52 PM
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#12 |
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Registered User
Join Date: Jan 2014
Location: Cowpens S.C.
Posts: 138
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Re: rear bounce
I was able to measure the angle of my shocks. They are leaning 15 degrees forward and 15 degrees inside at the top. What angle is too much?
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01-14-2017, 12:10 AM
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#13 |
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Registered User
Join Date: Jul 2009
Location: Space Coast, Fl.
Posts: 1,055
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Re: rear bounce
Lynn, my '71 GMC has 4" springs, 1" lowering block, shock relocators, shocks, & adj. panhard.... all CPP. I think it feels bouncy in the rear at Interstate speed. Particularly on concrete overpasses with expansion joints. Usually has no weight in the bed. I wonder if it's due to a combination of spring rate and shock valving. The front has 2.5" dropped spindles w/1 coil cut. The bounce bothered me worse a couple of years ago when I first changed the parts but I think i got used to it. Feels better now.
__________________
Dad always said, "Son, WISH IN ONE HAND, and ......." -------------------------------------- -------------------------------------- Current toy trucks: '71 GMC 1500 SUPER CUSTOM short/step, orig. dk. blue, 350/700r, ps,pb, A/C '72 Blazer 2wd, ochre & white, 454, tremecTKO 500 5spd. ps, pb, A/C, tilt Last 10yrs of hobby vehicles, had a FEW more in the 50yrs. before these: '66 Plymouth Belvedere City of Miami cop car clone. '70 Nova 406"sb, 13.5-1, solid roller, Brodix, p.glide/t.brake, back halved, 9" Ford, spool 4.88, cage,ladder bar/coilover, 10.5 tire....... SOLD!! '67 C10 short/step side mount spare -- SOLD!! '72 Jimmy 2wd, 350/350, ps, pb, fun driver, lots of bondo & a shiny red paint job..... SOLD!! '69 Nova 350, 4spd, A/C, ps, p.b, ...SOLD!! |
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01-14-2017, 07:51 AM
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#14 | |
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Registered User
Join Date: Apr 2013
Location: South Westerlo, New York
Posts: 1,325
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Re: rear bounce
Quote:
__________________
Thanks, Joe.. 1969 C/10, 348 C.I., 3X2 bbl. V8, 2004r , LWB. |
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01-14-2017, 07:48 PM
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#15 |
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Registered User
Join Date: Jan 2014
Location: Cowpens S.C.
Posts: 138
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Re: rear bounce
I guess it will have to live with the bounce.
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01-14-2017, 10:59 PM
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#16 |
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Registered User
Join Date: Apr 2012
Location: Ocala,Fl
Posts: 733
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Re: rear bounce
Use a shorter shock. Probably almost bottomed out and wont valve correctly that way. Im using fronts in the rear as others had on here.
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01-15-2017, 09:52 AM
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#17 |
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Registered User
Join Date: Jul 2009
Location: Space Coast, Fl.
Posts: 1,055
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Re: rear bounce
PM sent
__________________
Dad always said, "Son, WISH IN ONE HAND, and ......." -------------------------------------- -------------------------------------- Current toy trucks: '71 GMC 1500 SUPER CUSTOM short/step, orig. dk. blue, 350/700r, ps,pb, A/C '72 Blazer 2wd, ochre & white, 454, tremecTKO 500 5spd. ps, pb, A/C, tilt Last 10yrs of hobby vehicles, had a FEW more in the 50yrs. before these: '66 Plymouth Belvedere City of Miami cop car clone. '70 Nova 406"sb, 13.5-1, solid roller, Brodix, p.glide/t.brake, back halved, 9" Ford, spool 4.88, cage,ladder bar/coilover, 10.5 tire....... SOLD!! '67 C10 short/step side mount spare -- SOLD!! '72 Jimmy 2wd, 350/350, ps, pb, fun driver, lots of bondo & a shiny red paint job..... SOLD!! '69 Nova 350, 4spd, A/C, ps, p.b, ...SOLD!! |
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01-15-2017, 01:52 PM
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#18 |
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Registered User
Join Date: Nov 2011
Location: Ontario, California
Posts: 65
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Re: rear bounce
You likely installed them upside down. Remember these shocks don't have dust shields. The exposed rod goes to the top not bottom.
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01-15-2017, 06:20 PM
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#19 |
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Registered User
Join Date: Jan 2014
Location: Cowpens S.C.
Posts: 138
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Re: rear bounce
My stock shocks have dust covers. Monroe
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01-16-2017, 02:10 AM
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#20 |
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Registered User
Join Date: Nov 2011
Location: Ontario, California
Posts: 65
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Re: rear bounce
did you purchase for rear? Front shocks have different dampening specifications.
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01-16-2017, 09:06 AM
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#21 |
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Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,727
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Re: rear bounce
My truck is a leaf truck, but I have stock length front shocks all the way around. Relocated upper mount to unused second hole in OEM mount and have no issues with bounce so I think issue isn't that.
__________________
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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01-16-2017, 09:20 AM
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#22 |
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Registered User
Join Date: Jan 2014
Location: Cowpens S.C.
Posts: 138
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Re: rear bounce
I have rear shocks on rear of truck. Front is not a problem. I have shocks mounted correctly, dust cover up.
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