The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 01-22-2003, 06:35 PM   #1
Dropt72Shortbed
Registered User
 
Dropt72Shortbed's Avatar
 
Join Date: May 2002
Location: Huntington Beach CA
Posts: 678
who do i want to order my c-notch from??

i brought up this question a while back and forgot the answer...

which c-notch doesnt interfere with (or doesnt interfere as much as the other brands) the adjustable tracking arms? also did anyone find a c-notch and adj tracking arm that wont interfere with each other when you get real low?

got my por15 and degreaser here, beds off, springs are out, time for me to notch the frame, paint it and get my bags in.. so i need to order that notch ASAP.
Dropt72Shortbed is offline   Reply With Quote
Old 01-22-2003, 06:46 PM   #2
Slammed67
Progress = 0%
 
Slammed67's Avatar
 
Join Date: Nov 2001
Location: Kansas City, MO
Posts: 2,108
The Classic Performance Products C-notch will interfere with the Early Classics modified panhard bar. See pic below.



And here is how I fixed it.....

__________________
Jason - '67 GMC swb | '57 Bel-Air 4dr hardtop | '56 210 4dr Wagon | 2000 GMC Sierra
Slammed67 is offline   Reply With Quote
Old 01-22-2003, 06:51 PM   #3
Dropt72Shortbed
Registered User
 
Dropt72Shortbed's Avatar
 
Join Date: May 2002
Location: Huntington Beach CA
Posts: 678
so it orginally mounted under the axle on top of the arm and you just cut the mount down and welded it down into the side of the arm?
Dropt72Shortbed is offline   Reply With Quote
Old 01-22-2003, 06:55 PM   #4
Slammed67
Progress = 0%
 
Slammed67's Avatar
 
Join Date: Nov 2001
Location: Kansas City, MO
Posts: 2,108
Yep! The kit comes with the bracket that fits between the arm and the axle pads. It also comes with a spacer plate for the other side so they are the same. I just hacked off the part of the bracket that the rod mounts to and welded it to the inside of the trailing arm.
__________________
Jason - '67 GMC swb | '57 Bel-Air 4dr hardtop | '56 210 4dr Wagon | 2000 GMC Sierra
Slammed67 is offline   Reply With Quote
Old 01-22-2003, 06:55 PM   #5
Dropt72Shortbed
Registered User
 
Dropt72Shortbed's Avatar
 
Join Date: May 2002
Location: Huntington Beach CA
Posts: 678
oh yea nother question slammed, your pumpkin doesnt hit the bed floor with the axle bottomed on the c-notch does it?
Dropt72Shortbed is offline   Reply With Quote
Old 01-22-2003, 08:09 PM   #6
Reumster
L.E.D. Freak
 
Reumster's Avatar
 
Join Date: Jan 2002
Location: Polson MT
Posts: 1,358
My question is the C-notch kit from Classic Performance Products the only kit out there bolt on? And is it a true bolt on aplication or do you recommend welding it also? I'm thinking of getting it soon, along with a bolt on hidden hitch.
__________________
Specializing in Custom L.E.D. inserts.
http://www.ccled.com/
Contact me @ blazer2wd1972@hotmail.com
(406)675-8082
or Joel @ jmcwaters@eps-corp.net

1972 2wd Blazer, 350/700R4/3:73 posi, err & Custom L.E.D. inserts! LOL
Reumster is offline   Reply With Quote
Old 01-22-2003, 08:58 PM   #7
XXL
Seņor Member
 
XXL's Avatar
 
Join Date: May 2002
Location: Edge of the world
Posts: 5,367
Quote:
Originally posted by Dropt72Shortbed
oh yea nother question slammed, your pumpkin doesnt hit the bed floor with the axle bottomed on the c-notch does it?
If you do NOT use the snubbers that come with the kit, the pumpkin WILL hit the bottom of the bed. It will also hit the bed crossmember just forward of the third member. If you use the snubbers as provided, you'll lose about 1 1/2" of drop but won't have the clearance problems described above. I run without the snubbers but my bed floor is raised 2" and I clearanced the crossmember.


Quote:
Originally posted by Reumster
My question is the C-notch kit from Classic Performance Products the only kit out there bolt on? And is it a true bolt on aplication or do you recommend welding it also? I'm thinking of getting it soon, along with a bolt on hidden hitch.
It's the only kit I'm aware of. I bolted mine on. It comes with grade 8 bolts and seems to be rock solid once mounted. However, I do not consider the product a true "bolt on" application for anyone lowering their truck more than 6". The reason is that to lower more than that you MUST resolve the rearend shift due to the Panhard bar geometry. Since the logical choice is to go with the longer Panhard bar (Super Track Bar) from ECE, and that bar mount interferes with the notch kit as Slammed67 showed above, you've got to cut something. He cut the bar mount. I chose to modify the notch itself. So on my truck, the notch on the right side is much bigger (front to rear) than the one on the left, allowing the ECE Panhard bar mount to travel up into the notch as needed.

I hope this helps,

Kenneth
XXL is offline   Reply With Quote
Old 01-22-2003, 09:40 PM   #8
RUDEDAWG
Registered User
 
RUDEDAWG's Avatar
 
Join Date: Jan 2003
Location: New Mexico
Posts: 88
build your own! you would be suprised how easy it is if you have a welder, grinder, and a torch. I built my own out of 1/4 inch stock using a piece of cardboard as a template.Cut the frame notch out with a sawzall to reduce heating the frame up.
__________________
'72 1/2 ton short box
468 BB forged crank/rods/pistons full roller. Msd 6 AL ignition
turbo 400 tci. 2800 verter
ladderbar/coil rear with currie built ford 9'' rear, 4.11 gears
custom built rear frame
tubbed, 33/19.50/15 rear m/t.
m/t skinnies in front
still under construction
RUDEDAWG is offline   Reply With Quote
Old 01-22-2003, 10:48 PM   #9
Dropt72Shortbed
Registered User
 
Dropt72Shortbed's Avatar
 
Join Date: May 2002
Location: Huntington Beach CA
Posts: 678
Quote:
Originally posted by XXL

If you do NOT use the snubbers that come with the kit, the pumpkin WILL hit the bottom of the bed. It will also hit the bed crossmember just forward of the third member. If you use the snubbers as provided, you'll lose about 1 1/2" of drop but won't have the clearance problems described above. I run without the snubbers but my bed floor is raised 2" and I clearanced the crossmember.
the bumpstops on the kit are 1.5" thick? damn. id like to get down that extra 1.5" but i kinda want to run a wood bed so i might just have to fab up some taller crossmembers etc...
Dropt72Shortbed is offline   Reply With Quote
Old 01-23-2003, 12:12 AM   #10
Slammed67
Progress = 0%
 
Slammed67's Avatar
 
Join Date: Nov 2001
Location: Kansas City, MO
Posts: 2,108
XXL is correct. The pumkin will hit the floor without the snubbers. I resolved this issue my raising my bed floor 1.5". Mine is a steel floor, but I'm sure a wood bed would be done in the same manner.
__________________
Jason - '67 GMC swb | '57 Bel-Air 4dr hardtop | '56 210 4dr Wagon | 2000 GMC Sierra
Slammed67 is offline   Reply With Quote
Old 01-23-2003, 09:05 AM   #11
XXL
Seņor Member
 
XXL's Avatar
 
Join Date: May 2002
Location: Edge of the world
Posts: 5,367
Quote:
Originally posted by Dropt72Shortbed


the bumpstops on the kit are 1.5" thick? damn. id like to get down that extra 1.5" but i kinda want to run a wood bed so i might just have to fab up some taller crossmembers etc...
As you're planning up a raised floor, don't forget that the back end of the floor will be exposed (stock, it is basically flush with the rear sill. So if you're going to do a wood kit, you'll have to be creative about finishing off that end since you probably won't want end grain just sticking out at you.

Kenneth
XXL is offline   Reply With Quote
Old 01-23-2003, 09:07 AM   #12
XXL
Seņor Member
 
XXL's Avatar
 
Join Date: May 2002
Location: Edge of the world
Posts: 5,367
Quote:
Originally posted by Slammed67
XXL is correct. The pumkin will hit the floor without the snubbers. I resolved this issue my raising my bed floor 1.5". Mine is a steel floor, but I'm sure a wood bed would be done in the same manner.
Got any pics of this? Did you just literally raise the stock floor or did you refit it with new material?

Kenneth
XXL is offline   Reply With Quote
Old 01-23-2003, 01:34 PM   #13
GMCGRANDS
Registered User
 
Join Date: Jan 2001
Location: Franklin , N.C. USA
Posts: 105
Slammed67 how much drop do you have and what kind? I just bought a ECE 4/6 kit but havent installed it yet. I was considering a C-notch to allow me to go lower later (I have the frame stripped at the moment). I wasnt aware of the problem with the track bar. Do you know how much clearance would be between the frame and axle with the ECE 4/6 kit or how much lower I can go with the track bar becoming a problem with or without a C-notch?
__________________
Mark
72'GMC Sierra Grande 2wd SWB, Fatman stageV IFS, 6.0 liter LQ4 Gen 3 and 4L80E under construction

05' GMC Sierra Denali LQ9
GMCGRANDS is offline   Reply With Quote
Old 01-23-2003, 02:56 PM   #14
Slammed67
Progress = 0%
 
Slammed67's Avatar
 
Join Date: Nov 2001
Location: Kansas City, MO
Posts: 2,108
GMCGRANDS: My truck has air bags. I'd think with the 4x6 drop, you'd be okay with the c-notch since you'd probably leave the rubber snubbers in place.

XXL: I actually raised the stock floor. I've got some pics at home that I can send you. (I'm at work now) It was pretty easy to do. I wasn't about to put a big "hump" in my floor or cut out a hole for the pumkin.
__________________
Jason - '67 GMC swb | '57 Bel-Air 4dr hardtop | '56 210 4dr Wagon | 2000 GMC Sierra
Slammed67 is offline   Reply With Quote
Old 01-23-2003, 03:21 PM   #15
XXL
Seņor Member
 
XXL's Avatar
 
Join Date: May 2002
Location: Edge of the world
Posts: 5,367
Quote:
Originally posted by Slammed67
GMCGRANDS: My truck has air bags. I'd think with the 4x6 drop, you'd be okay with the c-notch since you'd probably leave the rubber snubbers in place.
The problem doesn't seem to be too bad until you get the 6" drop point. To see what's actually happening to the rear end as the truck drops down, you can take your springs out of the rear and slowly lower the truck down until the axle rests on the frame. Take tire/wheel/fender clearance measurements from BOTH sides of the truck before you lower it, and do the same after. The measurements will indicate that the body has shimmied to the left relative to the rearend (actually, it's the rearend that has shifted to the right). The reason for changing the Panhard bar is to correct this problem. And a full width bar like the one from ECE does a better job than a short one (like the stock bar) because the arc that it swings in is much less severe, thus making the sideways shift less pronounced as you bump up and down in the road. The aftermarket usually have the added feature of being adjustable so you can find the ideal center. *phew*


Quote:
Originally posted by Slammed67
XXL: I actually raised the stock floor. I've got some pics at home that I can send you. (I'm at work now) It was pretty easy to do. I wasn't about to put a big "hump" in my floor or cut out a hole for the pumkin. [/B]
I'd love to see the pics. I had originally had some diamond plate steel cut so I could go on either side of the rearend and then I was going to do a single piece rolled to fit side to side along the axle line. Then I decided I'd rather have a shorter bed floor than one with a lump in it. But I haven't done anything about it yet. As of now I have the two pieces of steel mentioned above clamped in place to the new bed floor frame I made out of 2 x 2 square tube. So every time I hit a big bump in the road it sounds like Fred Sanford just pulled up . I have been contemplating grafting in a sheetmetal bed floor from a fleet but I still have to figure out what to do with the end where my bed floor is raised above the tailgate line (when down). I think my best bet is to go back to the diamond plate, but just get one piece cut to fit and zip it in. Then I can get nasty with the bedliner material and I'm done. Hmmm... so many projects, so little time.

Kenneth
XXL is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 08:42 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com