| Testdriving new shocks [message #279213] |
Sat, 06 June 2015 14:18  |
appie
Messages: 902
Registered: April 2013
Location: denmark
Karma: 2
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So as I wrote before the caspro shocks were completely gone. Installed the new KYB no peoblem there
Drove 50 k today
A distinct, but not dramatic change. A more solid feeling, coming out of bents and over speedbumps. Did not have the change to overtake trucks at highwayspeed yet, but expect a more dramatic change there as she was wobling a bit there
Now wondering about rear shocks, no way to realy test them while they are in, but they are caspro 202940 and prob as old as the fronts
Appie
eleganza 76 "Olga" now sadly sold
6 wheel discbrake
Quadrabags
Springfield stage 2 462 olds
Manny tranny
( pictures at http://www.gmcmhphotos.com/photos/g6489-olga.html
Fulltiming in Europe july 2014 til july 2016
Denmark
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| Re: [GMCnet] Testdriving new shocks [message #279238 is a reply to message #279213] |
Sat, 06 June 2015 20:36  |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Appie,
If the front shocks were gone I would expect the rears not to be in the greatest shape either. Plus if I remember what I've read on
the GMCnet the reputation for those Caspro shocks wasn't the greatest; I would replace the rears with KYB's as well.
However, even if your shocks are new you will still get wobbling when you get passed by a big rig or pass one. No matter what you do
the amount of turbulence around a big rig will affect your GMC some degree.
I am of the opinion that to reduce the "wobbling" you can:
1) install MOOG offset bushings in the rear "leg" of the upper control arms to increase the caster (you'll get around 2°).
2) install a set of Dave Lenzi's offset upper control arms
3) install a 1 ton front end - the location of the lower ball joint allows you to get increased caster
Personal experience with Double Trouble demonstrated that 1) was better that OEM and 2) was better than 1). As my front end is
completely rebuilt on both Double Trouble and The Blue Streak with Dave's upper control arms I won't be installing 3).
Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
-----Original Message-----
From: lenze middelberg
So as I wrote before the caspro shocks were completely gone. Installed the new KYB no peoblem there
Drove 50 k today A distinct, but not dramatic change. A more solid feeling, coming out of bents and over speedbumps. Did not have
the change to overtake trucks at highway speed yet, but expect a more dramatic change there as she was wobling a bit there
Now wondering about rear shocks, no way to realy test them while they are in, but they are caspro 202940 and prob as old as the
fronts
--
Appie
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Testdriving new shocks [message #279301 is a reply to message #279297] |
Sun, 07 June 2015 19:38 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Espen,
There is no way that anyone could ever tell you have installed Dave's upper control arms they look EXACTLY like the OEM arms:
http://www.gmcmhphotos.com/photos/g5861-dave-lenzi-27s-offset-upper-control-arms.html
Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
-----Original Message-----
From: Espen Heitmann
Just to add a little note, I will never get the Lenzi upper arm or the 1 ton approved here, but to get rid of some flex in the lower
arm install poly bushings, you can get them from Energy suspension or PST, and do the same on the sway bar while you are at it.
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GMCnet mailing list
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Testdriving new shocks [message #280107 is a reply to message #280098] |
Wed, 17 June 2015 10:30 |
Keith V
Messages: 2337
Registered: March 2008
Location: Mounds View,MN
Karma: 0
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Senior Member |
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I put new shocks on last summer, my old Bilstiens were shot.
It really helps!
It used to bounce kitty corner since it had one front and one rear with a little action left in them, while the others were basically nothing
Keith Vasilakes
Mounds View. MN
75 ex Royale GMC
ask me about MicroLevel
Cell, 763-732-3419
My427v8@hotmail.com
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