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Old 06-27-2006, 08:04 PM   #1
PBFAB.COM
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Back-half, Corvette C4 in 69

Here's some pics of a back-half, C4 install we're doing in a 69 C10. It will lay frame and have a pair of Air Ride Technologies Shockwaves canti-levered. I also have a nice before pic.
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Old 06-27-2006, 08:23 PM   #2
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Re: Back-half, Corvette C4 in 69

sa-weet
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Old 06-27-2006, 11:43 PM   #3
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Re: Back-half, Corvette C4 in 69

Now we are talking So a few questions for ya. Does the frame need to be lopped off due to the width or just because of the third member being raised up? How much higher is the flor at this point if it were in place? You do know the more pics you put up the sooner I may have to drive over and check your place out! Any chance you will be doing a kit for this? It would go real nice with your front Dropmember..

Kevin
LFD Inc.
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Old 06-28-2006, 12:17 AM   #4
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Re: Back-half, Corvette C4 in 69

Quote:
Originally Posted by Rokcrln
Now we are talking So a few questions for ya. Does the frame need to be lopped off due to the width or just because of the third member being raised up? How much higher is the flor at this point if it were in place? You do know the more pics you put up the sooner I may have to drive over and check your place out! Any chance you will be doing a kit for this? It would go real nice with your front Dropmember..

Kevin
LFD Inc.
I lopped off the frame because of the width, and because of the third member being raised. It seems easier (to me) to build a new back-half than modify the stock chassis to accomodate the extreme drop. The top of the new frame-rails sit four inches higher than the original floor height. I hadn't thought of offering it in a kit form... do you want one?

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Old 06-28-2006, 04:41 AM   #5
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Re: Back-half, Corvette C4 in 69

I like the design of the reinforcement where it ties into the frame. I also like your miter cut gussetting. Lookin sweet!
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Old 06-28-2006, 07:21 PM   #6
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Re: Back-half, Corvette C4 in 69

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Originally Posted by porterbuilt
I lopped off the frame because of the width, and because of the third member being raised. It seems easier (to me) to build a new back-half than modify the stock chassis to accomodate the extreme drop. The top of the new frame-rails sit four inches higher than the original floor height. I hadn't thought of offering it in a kit form... do you want one?
That all makes gopd sence! As far as a kit for me, all my kits come like yours do (In 20' lengths from the steel co). I just knew it would be asked so I thought I would get it out their. But in reality if you were to offer a Jig built back half I think it would take off.

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Old 06-28-2006, 10:05 PM   #7
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Re: Back-half, Corvette C4 in 69

That's pretty sweet looking. Very impressive welds too.
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Old 06-29-2006, 02:01 PM   #8
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Re: Back-half, Corvette C4 in 69

Beautiful work! In the far future I'd like to do that to my '67 for some Open Road Racing. The welding and brackets are very classy.
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Old 06-29-2006, 08:17 PM   #9
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Re: Back-half, Corvette C4 in 69

Got a little more done on it today.
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Old 06-29-2006, 08:20 PM   #10
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Re: Back-half, Corvette C4 in 69

A couple more pics.
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Old 06-29-2006, 08:21 PM   #11
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Re: Back-half, Corvette C4 in 69

Very impressive!

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Old 06-29-2006, 11:25 PM   #12
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Re: Back-half, Corvette C4 in 69

That's gonna ride like a dream. Keep the progress pics coming.
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Old 06-30-2006, 02:21 AM   #13
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Re: Back-half, Corvette C4 in 69

Getting your $$$ back out of that CNC plasma cutter huh?!?! So very nice! Wondering what the rear bed cross-sill will rest on, but I'm sure it's all planned out. Keep the pics rollin'.
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Old 06-30-2006, 11:37 PM   #14
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Re: Back-half, Corvette C4 in 69

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Getting your $$$ back out of that CNC plasma cutter huh?!?! So very nice! Wondering what the rear bed cross-sill will rest on, but I'm sure it's all planned out. Keep the pics rollin'.

You will find out soon enough about how we mount the bed... and you better believe it about the CNC plasma! I don't think anything could get done without it! I used to do the hand plasma and grind thing when I first started out, but I was never satisfied with the end result... never could get it "perfect" or close enough to where it didn't keep me from sleeping at night! I am one of those who holds myself to an extremely high standard.

Here's a couple more pics of the back-half minus bed and body. We still have to finish up the shockwave and canti-lever mounts (It would have been done by now if I had remembered to re-stock on plate!) It shows how low it can go!
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Old 07-01-2006, 12:18 AM   #15
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Re: Back-half, Corvette C4 in 69

That C4 Stuff Doenst Seem Near As Heavy Duty As The Old C3's
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Old 07-01-2006, 12:37 AM   #16
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Re: Back-half, Corvette C4 in 69

That is looking great! What is the front suspention set up?

Kevin
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Old 07-01-2006, 01:39 AM   #17
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Re: Back-half, Corvette C4 in 69

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Originally Posted by Rokcrln
That is looking great! What is the front suspention set up?

Kevin
LFD Inc.
The front end is a Dropmember.
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Old 07-01-2006, 11:05 AM   #18
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Re: Back-half, Corvette C4 in 69

not into the whole "bag" thing but you do some REALLY NICE WELDS and love the signature ya left at the back of the frame
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Old 07-01-2006, 04:39 PM   #19
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Re: Back-half, Corvette C4 in 69

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Originally Posted by QKENUF4U
not into the whole "bag" thing but you do some REALLY NICE WELDS and love the signature ya left at the back of the frame
You can always run coil overs or the stock mono leaf!

Kevin
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Old 07-01-2006, 04:55 PM   #20
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Re: Back-half, Corvette C4 in 69

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Originally Posted by QKENUF4U
not into the whole "bag" thing but you do some REALLY NICE WELDS and love the signature ya left at the back of the frame

"Bags" aren't for everybody! We are doing a full C4 set-up on a 71 Blazer that will not be bagged. It will have coil-overs up front, and either mono-leaf or coil-ovrs in the rear. Hopefully we will get to the chassis on it in the next month or two (most likely 2!).
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Old 07-02-2006, 11:33 AM   #21
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Re: Back-half, Corvette C4 in 69

A few more questions for you if you don't mind. With the vett set up out back what size tire/rim combo will fit between the bed lip and forward control links while still laying frame? Also if you can please explain to us theadvantage of this set up over a solid axel. Handling, bed floor clearance at same givin heights, tire size!

Thanks for your time. Also you have two packages headed your way

Kevin
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Old 07-02-2006, 12:20 PM   #22
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Re: Back-half, Corvette C4 in 69

Hey PB what type / brand of cnc plasma do you have? I am looking at a couple of different setups right now, and id like to hear what you think. PM me and let me know what you are using. thanks
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Old 07-03-2006, 01:07 AM   #23
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Re: Back-half, Corvette C4 in 69

Cant wait to see how the waves are gonna be mounted in a canti setup. Should be super trick.
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Old 07-03-2006, 08:56 AM   #24
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Re: Back-half, Corvette C4 in 69

Very sweet set-up sure hope to see a clear or false bed floor that could raise up to show off all that hard work it would be a shame to cover it all up...
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Old 07-03-2006, 02:00 PM   #25
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Re: Back-half, Corvette C4 in 69

Did you have to narrow the rear any? What is the track width on it?
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