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Old 10-15-2009, 10:29 AM   #1
SCOTI
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Re: 2" Drop Trailing arms

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Originally Posted by texas67chevy View Post
I am gonna run a 6" rear drop, besides the fact that these arms are wicked bad, are there any advantages to running the drop arm and a 4" spring as opposed to just a 6" spring?
Better shock travel when using the PB Dropped truck Arm or a lowering block/OE truck arm combo vs. an all spring drop.
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Old 10-16-2009, 07:36 AM   #2
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Re: 2" Drop Trailing arms

Just for the record,... mine need to be 2" drop.
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Old 10-16-2009, 11:31 AM   #3
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Re: 2" Drop Trailing arms

Yes, they do come in 2" and 3" drops.

SCOTI- I had you down for the 3" arms.... I may have been mistaken, as we had several conversation about lots of different ideas. I will be more than happy to exchange them for a set of 2" arms.

Lolife- No worries, I have yours as 2".

Frizzle- I figured I would just pile all your stuff in the back of my truck and head out that way.... would probably save some on shipping!
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Old 10-16-2009, 04:51 PM   #4
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Re: 2" Drop Trailing arms

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Originally Posted by porterbuilt View Post

Frizzle- I figured I would just pile all your stuff in the back of my truck and head out that way.... would probably save some on shipping!
Do it! Throw that 56 cab in there while yer at it
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Old 10-29-2009, 02:05 PM   #5
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Re: 2" Drop Trailing arms

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Are these what I just bought? (I'm so impatient! I want to pile up all my new toys like a kid at christmas! lol)
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Old 10-29-2009, 02:34 PM   #6
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Re: 2" Drop Trailing arms

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Are these what I just bought? (I'm so impatient! I want to pile up all my new toys like a kid at christmas! lol)
Those are the ones!

Looks like Christmas should show up on Nov. 3rd (according to UPS!)
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Old 10-29-2009, 02:56 PM   #7
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Re: 2" Drop Trailing arms

Any Christmas for me?
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Old 10-29-2009, 03:11 PM   #8
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Re: 2" Drop Trailing arms

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Originally Posted by lolife99 View Post
Any Christmas for me?
I didn't know you celebrated Christmas....

You will be this year for sure!
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Old 10-29-2009, 03:53 PM   #9
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Re: 2" Drop Trailing arms

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I didn't know you celebrated Christmas....

You will be this year for sure!
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Old 10-29-2009, 03:57 PM   #10
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Re: 2" Drop Trailing arms

SOme PB Eye candy!

cannot wait to get it all installed.... still missing a nut though.



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Old 10-29-2009, 05:37 PM   #11
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Re: 2" Drop Trailing arms

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Originally Posted by porterbuilt View Post
I didn't know you celebrated Christmas....

You will be this year for sure!
You are right.
I'm a Scrooge.
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Last edited by lolife99; 10-29-2009 at 05:40 PM.
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Old 10-29-2009, 05:44 PM   #12
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Re: 2" Drop Trailing arms

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You are right.
I'm a Scrooge.
I will make sure a lump of coal heads out with it!

Nate
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Old 10-31-2009, 12:41 PM   #13
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Re: 2" Drop Trailing arms

does the xmember mount on top of the top frame rail??? i know you said its designed to have a 1/8" clearence, between the cab and top most point of the xmember, and putting the xmember on-top of the frame rail, vs. on bottom (of the top frame rail) would take up that 1/8".... does that make sence? nate, you have a install pic?
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Old 10-31-2009, 12:58 PM   #14
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Re: 2" Drop Trailing arms

All others go under the rails just like factory.... I would assume PB's do as well.
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Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive.
It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.....

Cubic inches is like Indiana Jones with a cheap pistol.
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Old 10-31-2009, 01:26 PM   #15
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Re: 2" Drop Trailing arms

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All others go under the rails just like factory.... I would assume PB's do as well.
correct, it sandwhichs the frame-rails, meaning the xmember goes between the top and bottom frame rails... PB xmember doesnt sandwhich the rails like this. it either has to mount on TOP of BOTH the top and bottom frame-rails, or mount on the BOTTOM of BOTH frame-rails..... and when talking to him he said it was designed to have the 1/8" clearence, so if it was mounted on the BOTTOM (when designing), and i mount it on top, then i would be realllly close (if not hitting)....

Last edited by 68 short step; 10-31-2009 at 01:28 PM.
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Old 10-31-2009, 01:42 PM   #16
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Re: 2" Drop Trailing arms

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Originally Posted by 68 short step View Post
correct, it sandwhichs the frame-rails, meaning the xmember goes between the top and bottom frame rails... PB xmember doesnt sandwhich the rails like this. it either has to mount on TOP of BOTH the top and bottom frame-rails, or mount on the BOTTOM of BOTH frame-rails..... and when talking to him he said it was designed to have the 1/8" clearence, so if it was mounted on the BOTTOM (when designing), and i mount it on top, then i would be realllly close (if not hitting)....
Don-

No drama worries!

Yours mounts just like you have it in your build thread pics. The top mount will be on top of the rail, and the bottom mount will be on top of the bottom rail. I have been experimenting a little! With this mount design, you could gain a little additional clearance IF needed by mounting the x-member mounting tabs under the top rail, and under the bottom rail... Hope I made sense.
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Old 11-01-2009, 11:56 AM   #17
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Re: 2" Drop Trailing arms

Nate, those look great. I have seen your products around but I did not know you were on this site. I am on a similar path of R&D as you were, but not for production more for personal use. I am putting the whole suspension system on a ford 9" rear and would have to tweak every thing you've made, other wise I would be in line for a set myself.
Mike
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Old 11-02-2009, 08:16 AM   #18
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Re: 2" Drop Trailing arms

A pair of heim joints arrived over the weekend... I'm ancious to see the rest. lol Poor thing has been sitting out there so long doing an impression of a garden sculpture that I am super jacked to get things going on it finaly.

It was a busy weekend getting some home repair/upgrade issues sorted out, but I did manage to get one a-arm cleaned up. Gotta love the smell of oven cleaner when you get too close hosing the things down. lol

While waiting for the rest of the suspension parts... Here is what $40 will get you o eBay if you hunt around enough:
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Old 11-02-2009, 10:23 AM   #19
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Re: 2" Drop Trailing arms

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Originally Posted by panhandler62 View Post
A pair of heim joints arrived over the weekend... I'm ancious to see the rest. lol Poor thing has been sitting out there so long doing an impression of a garden sculpture that I am super jacked to get things going on it finaly.

It was a busy weekend getting some home repair/upgrade issues sorted out, but I did manage to get one a-arm cleaned up. Gotta love the smell of oven cleaner when you get too close hosing the things down. lol

While waiting for the rest of the suspension parts... Here is what $40 will get you o eBay if you hunt around enough:
That's a big intake for a C20 (heavy) truck. What's the intended RPM operating range? What CID?
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Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive.
It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar.....

Cubic inches is like Indiana Jones with a cheap pistol.
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Old 11-02-2009, 12:15 PM   #20
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Re: 2" Drop Trailing arms

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That's a big intake for a C20 (heavy) truck. What's the intended RPM operating range? What CID?
Yeah.. it is pretty big.

She has a 350 with a 4sp (3 +1) and a fairly low rear. Before taking it all down I never used 1st gear. I do know I'll sacrifice some off-idle but with all the gears available it won't be hard to keep her up over 2k.

The biggest issue is that I will probably need a vacume can if I want to run power brakes.
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Old 11-17-2009, 08:38 AM   #21
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Re: 2" Drop Trailing arms

Ray,...
Do you have any pics?
I think some people have used a step notch. (either at full height or cut down a little)
Either way,... the location where the frame crosses over the top of the trailing arm,... is the limiting factor.
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Old 11-17-2009, 11:36 AM   #22
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Re: 2" Drop Trailing arms

http://67-72chevytrucks.com/vboard/s...269754&page=19
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Old 11-17-2009, 09:19 PM   #23
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Re: 2" Drop Trailing arms

hey Panhandler62

OMG I hate those Rivets!!!!! i had to get my off with the bed and cab still on the truck and me on the floor. I used everything i had to get them off, grinder drill and air chisel

Hey Keith sorry no i don't have any pic's but i will take some tomorrow. The thing i was worried about is if i go with a taller notch am i going to screw up where the shocks mount or the bags? I don't care to lay frame but with the drop member up front i can't leave it to high, It would look stupid.

Thanks Ray
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Old 11-17-2009, 09:24 PM   #24
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Re: 2" Drop Trailing arms

Can you say,... Dropmember #2?
That would make your truck!
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Old 11-17-2009, 10:00 PM   #25
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Re: 2" Drop Trailing arms

LOL thanks Keith Can you say pour man! empty pockets. I should of left it stock!!!! LOL



Thanks Ray
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