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Lowered 78 d150 shocks #1789858
03/28/15 01:27 AM
03/28/15 01:27 AM
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Wyoming
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mechanic190 Offline OP
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So I ended up cutting a cool and a half from my front coils on my drag pick up. Also put the rear above the springs. I'm on a tight budget with the current oil prices causing low work hours. My question is what shocks should I run on the front and rear. I'd prefer to run something I can just get at Napa for now. Nothing too fancy. The front ones have the two bolts going up into the lower control arm and the tears are gonna need to be quite a bit shorter also. Anyone with part numbers?

Re: Lowered 78 d150 shocks [Re: mechanic190] #1789859
03/28/15 02:16 AM
03/28/15 02:16 AM
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Graham, WA
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Polarapete Offline
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Most shock manufacturers have reference charts in their paper catalogs that list extended length, compressed length, mounting style. etc. So your assignment is to get close to the NAPA counterman and have him let you look through the catalogs so that you understand what the stock application specs are, then determine what the custom dimensions are that you have created and find something that would fit the mounting points in your truck and have the capacity to control the mass of the wheel/tire combo that you are using, Good luck, that is what I would do for my Ramcharger racer when it is time to select the shocks...I have a ways to go yet.


1986 Dodge Ramcharger 440 2wd, Bracket Racer Under Construction
1998 Ram 2500 QuadCab, new daily driver.
2008 Honda Element
2014 Carry-On 7x14 Cargo Trailer
Re: Lowered 78 d150 shocks [Re: Polarapete] #1789860
03/28/15 05:15 PM
03/28/15 05:15 PM
Joined: Jan 2003
Posts: 12,043
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hp383 Offline
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http://www.monroe.com/assets/downloads/english/MonroeMountingLengthSpecifications.pdf


Look up the Monroe shock for your application, find it in this book. Then record the compressed and extended lengths, and the end fittings used.

Then just start browsing through the book, I usually look for end match first, then length. When you find a match look up the Monroe number to find application.

I have not searched for shorter shocks, so I dont have any part numbers to offer.

I usually lift the cars and trucks I drive so I have to find longer shocks


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Re: Lowered 78 d150 shocks [Re: hp383] #1789861
03/28/15 06:48 PM
03/28/15 06:48 PM
Joined: Jan 2003
Posts: 5,788
Hamilton, Ontario Canada
Magnum Offline
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I find the shock absorber angle becomes severe on lowered trucks. Almost rendering them useless.

At the lower angle the shock absorber is not as effective. A stronger shock is required to do the same job.

When I lowered my D100. The top holes were redrilled a bit outboard and a clearance notch was made for the body of the shock. I think we used Mopar Performance drag shocks from a 68-70 B body. Not much length measurements made, we just had them laying around but the set up did perform well.

I forgot to add. I'm specifically referring to the rear shocks.

Last edited by Magnum; 03/30/15 12:21 AM.

69 Super Bee, 93 Mustang LX, 04 Allure Super
Re: Lowered 78 d150 shocks [Re: Magnum] #1789862
03/28/15 08:07 PM
03/28/15 08:07 PM
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Graham, WA
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Polarapete Offline
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I have a new set of LCAs with ball joints from a B series van that I bought from rockauto.com and they lower the shock bottom mount about 2" (the depth of the spring pocket) and if you use them you should not have an issue of reduced effectivenes due to angularity. I may cut a half coil too...I need to get that body down out of the wind if I want to develope some speed in the quarter.

'68 to 70 B-Body shocks are a good place to start.


1986 Dodge Ramcharger 440 2wd, Bracket Racer Under Construction
1998 Ram 2500 QuadCab, new daily driver.
2008 Honda Element
2014 Carry-On 7x14 Cargo Trailer
Re: Lowered 78 d150 shocks [Re: Polarapete] #1789863
04/01/15 08:47 PM
04/01/15 08:47 PM
Joined: Apr 2012
Posts: 119
Wyoming
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mechanic190 Offline OP
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Well the Monroe book lists no shorter shocks for an s4 top and xp8 bottom

Re: Lowered 78 d150 shocks [Re: mechanic190] #1789864
04/02/15 03:15 PM
04/02/15 03:15 PM
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Back home in PA
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BulletBob Offline
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Use the stock shocks you won't bottom them out

Re: Lowered 78 d150 shocks [Re: BulletBob] #1789865
04/03/15 09:09 PM
04/03/15 09:09 PM
Joined: Dec 2007
Posts: 1,357
central Florida
VL21 Offline
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central Florida
Quote:

Use the stock shocks you won't bottom them out





Mine do.

Does that mean I'm too low?

NAH!

I have maybe cut the spring too much, when jacked up the spring is only slightly loose in the pocket, no rubber bumpers, and it bobs like an unsprung rail dragger going down the road ...

Not sure if I am going to raise it (lesser cut springs) or do the van lower conversion.

The truck isn't worth the investment in the only real good alternative, the dropped spindles ... my GMC was perfect with the Bell tech drop (spindles, springs and a flip/notch).

And I have had no luck with the online shock catalogs either. So I tried the stock ones ...

8480147-028.jpg (418 downloads)

It takes gasoline to interest me.
Re: Lowered 78 d150 shocks [Re: VL21] #1789866
04/05/15 05:52 PM
04/05/15 05:52 PM
Joined: Jun 2004
Posts: 767
NW PA
V10nacuda Offline
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I dont have exact part #s but look at shocks for an early S10 truck..
I remember when I built one some time ago I started by using s10 shocks mounting style was the same but it was quite a bit shorter.

The truck they went on appears lower than yours as well.

V10

Re: Lowered 78 d150 shocks [Re: V10nacuda] #1789867
04/05/15 06:56 PM
04/05/15 06:56 PM
Joined: Dec 2007
Posts: 1,357
central Florida
VL21 Offline
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central Florida
Quote:

I dont have exact part #s but look at shocks for an early S10 truck..
I remember when I built one some time ago I started by using s10 shocks mounting style was the same but it was quite a bit shorter.

The truck they went on appears lower than yours as well.

V10




I tried that, thinking, of course that Camaro, etc would be shorter ... but they are not appreciably shorter, the S10 shock for instance, is about a tenth of an inch shorter compressed, same length extended, and has about .2 more travel.

While it isn't rigid at rest now, the slightest travel bottoms the shock.

I'm getting used to riding a pogo on the concrete road segments and bridge joints, but wishing for something better in the ride dept.

I sure hate to raise it, but maybe I can tolerate a little nose bleed height.



It takes gasoline to interest me.
Re: Lowered 78 d150 shocks [Re: VL21] #1789868
04/05/15 09:49 PM
04/05/15 09:49 PM
Joined: Jun 2004
Posts: 767
NW PA
V10nacuda Offline
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I couldnt remember how much shorter.. i was thinking it was more..but old age has caught my memory... what about a pontiac fiero?

Re: Lowered 78 d150 shocks [Re: V10nacuda] #1805123
04/16/15 06:50 PM
04/16/15 06:50 PM
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Posts: 271
Dearborn, Michigan
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jstollfu Offline
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Dearborn, Michigan
Use the stock shocks, never been a problem on mine. and I have 1 inch lower blocks along with an axle flip. Josh-

Last edited by jstollfu; 04/16/15 06:50 PM.
Re: Lowered 78 d150 shocks [Re: mechanic190] #1805281
04/16/15 10:39 PM
04/16/15 10:39 PM
Joined: Dec 2007
Posts: 1,357
central Florida
VL21 Offline
pro stock
VL21  Offline
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central Florida
Rear shocks are not the problem, I had some new in the box Mopar shocks, I chose the shorter pair for the rear. I sort of think they were B body.

It is the fronts that I am (and I am pretty sure the OP) having trouble finding.

My 98 GMC had a Belltech kit, 2" coils, 2" spindles, and a flip/notch kit, and had I THINK Bilsteins on it, Came with the truck, but I never replaced them, I have no idea what the number might have been.

Truck is gone, so I can't go look.


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Re: Lowered 78 d150 shocks [Re: VL21] #1805542
04/17/15 12:36 PM
04/17/15 12:36 PM
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Back home in PA
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BulletBob Offline
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Originally Posted By VL21
Quote:
Use the stock shocks you won't bottom them out



Mine do.

Does that mean I'm too low?

NAH!

I have maybe cut the spring too much, when jacked up the spring is only slightly loose in the pocket, no rubber bumpers, and it bobs like an unsprung rail dragger going down the road ...

Not sure if I am going to raise it (lesser cut springs) or do the van lower conversion.

The truck isn't worth the investment in the only real good alternative, the dropped spindles ... my GMC was perfect with the Bell tech drop (spindles, springs and a flip/notch).

And I have had no luck with the online shock catalogs either. So I tried the stock ones ...

The only ones that I had bottom out in the front were for a one ton on a 1/2 ton
Stock 1/2-3/4 shocks are shorter & I had a problem with them topping out so I put a travel limiter on
I had pulled the shock thruogh the frame







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