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Old 07-20-2011, 12:18 AM   #1
ProStreet83C10
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83 C10 - short bed - c-notch

hey guys, a buddy is helpinging me do my notch on sunday as well as maybe pulling out a leaf from the rear end to get it to sit more level. Any hints/tips/suggestions/"to do's" or "NOT to dos" would be GREATLY appreciated as im really nervous about cutting my frame up!!!!

Let me know so i dont have a nervous breakdown in the middle of the initial cut!
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1983 Chevy C10

R/T: .194
60': 2.322
330: 6.379
1/8: 9.803
MPH: 71.37
1000: 12.781
1/4: 15.314
MPH: 88.79
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Old 07-20-2011, 01:57 AM   #2
gchemist
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Re: 83 C10 - short bed - c-notch

Read this: http://www.73-87.com/7387garage/chas...n/csection.htm

Good luck. I may be doing mine next month.
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Old 07-20-2011, 07:28 PM   #3
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Re: 83 C10 - short bed - c-notch

Id rather do this than start another thread, what's the lowest drop (in inches) one can do before a c notch becomes mandatory?
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Old 07-20-2011, 07:40 PM   #4
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Re: 83 C10 - short bed - c-notch

I's do your spring thing first and determin if you really need a C notch. What have you done to lower your truck so far?

I've been both ways and I figured out that lowering too much in front you may not like the final result. I didn't find it too practical. Looks fun but when tires don't fit the way you would like it changes things. Many of the chevy trucks you will find have a leaning factor that you have to deal with too.
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Old 07-20-2011, 07:47 PM   #5
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Re: 83 C10 - short bed - c-notch

If you do a typical flip kit with "unaltered" leaf springs for a 5in drop you dont need a c-notch, and you will have about 2.5-3in clearance from axle to frame. If you want a drop more than that you will need a c-notch.
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Old 07-20-2011, 07:54 PM   #6
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Re: 83 C10 - short bed - c-notch

Alright thanks guys!
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Old 07-20-2011, 11:00 PM   #7
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Re: 83 C10 - short bed - c-notch

im at 6" lower right now than factory and every bump i hit my bump stop brackets smack the axle tube. i may start by just removing brackets and seeing what kind of clearance i have....if i dont HAVE to notch my frame id rather not, but if i do i will.
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1983 Chevy C10

R/T: .194
60': 2.322
330: 6.379
1/8: 9.803
MPH: 71.37
1000: 12.781
1/4: 15.314
MPH: 88.79
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Old 07-20-2011, 11:03 PM   #8
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Re: 83 C10 - short bed - c-notch

Definitely remove the bracket first.
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Old 07-20-2011, 11:13 PM   #9
ProStreet83C10
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Re: 83 C10 - short bed - c-notch

yeah, not sure how much itll give me but i will remove and decide from there
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Zach Hall

1983 Chevy C10

R/T: .194
60': 2.322
330: 6.379
1/8: 9.803
MPH: 71.37
1000: 12.781
1/4: 15.314
MPH: 88.79
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Old 07-24-2011, 10:05 AM   #10
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Re: 83 C10 - short bed - c-notch

ok guys, today is D-Day, heading out in a few min to start the process, any last minute tips/tricks/etc on what and or how i should do this to make it simple and easy as possible?
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1983 Chevy C10

R/T: .194
60': 2.322
330: 6.379
1/8: 9.803
MPH: 71.37
1000: 12.781
1/4: 15.314
MPH: 88.79
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Old 07-24-2011, 10:51 AM   #11
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Re: 83 C10 - short bed - c-notch

I hope your just removing the bump stop for now. That shoud give you about 3". Doing a C notch when not needed is going to be like an old GF that won't go away
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Old 07-24-2011, 10:54 AM   #12
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Re: 83 C10 - short bed - c-notch

remove the bumpstop and you should be fine...try it out, and if it's hitting the frame all the time, c-notch it.
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Old 07-24-2011, 10:53 AM   #13
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Re: 83 C10 - short bed - c-notch

Next step will be shock extentions or new shorte shocks. Oh and the hole to pour money into will still be there
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Old 07-24-2011, 11:00 AM   #14
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Re: 83 C10 - short bed - c-notch

A grinder with a cut off wheel, a BFH, a cold chisle, a punch...and patients of coarse..lol
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Old 09-03-2011, 12:20 PM   #15
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Re: 83 C10 - short bed - c-notch

Quote:
Originally Posted by Pop's C-10 View Post
A grinder with a cut off wheel, a BFH, a cold chisle, a punch...and patients of coarse..lol
x2.. use a cut off wheel to cut an "x" through the head of the rivet and then the nice sharp chisel (you can sharpen it with the cut off wheel if you dont have a bench grinder) with the BFH to easily cut through the 4 little pieces left.
Or, even better, an air chisel if you can stand the noise!

I have a 5" flip with the stock bumps removed. The only time I ever hit frame was with a yard of mulch in the bed. (truck looked cool that extra inches down, though...)
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Old 09-03-2011, 03:13 PM   #16
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Re: 83 C10 - short bed - c-notch

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Originally Posted by primrrd View Post
x2.. use a cut off wheel to cut an "x" through the head of the rivet and then the nice sharp chisel (you can sharpen it with the cut off wheel if you dont have a bench grinder) with the BFH to easily cut through the 4 little pieces left.
Or, even better, an air chisel if you can stand the noise!

I have a 5" flip with the stock bumps removed. The only time I ever hit frame was with a yard of mulch in the bed. (truck looked cool that extra inches down, though...)
Or just cut the entire head of the rivet off with the cut off wheel.
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Old 07-24-2011, 11:03 AM   #17
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Re: 83 C10 - short bed - c-notch

Just take your time and go over your measurements and calculations good before you start cutting. You will be just fine! Lol I remember how nervous I was the day I notched mine.
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Old 07-24-2011, 11:12 AM   #18
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Re: 83 C10 - short bed - c-notch

Before you cut the frame brother make sure you jacked the the rear up from the right spot. You don't want anything pushing up or down on the frame. + Make sure you do everything else that has been mentioned above.

Cut the sucker, don't be shy. Good luck.
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Old 07-25-2011, 12:02 AM   #19
ProStreet83C10
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Re: 83 C10 - short bed - c-notch

i went ahead and did the full notch, i plan on lowering the rear more in the near future and wanted to just get it done. I got full pics of the process and we used a plasma cutter and grinding wheel to clean up the slag from the plasma. it went well and looks good.
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1983 Chevy C10

R/T: .194
60': 2.322
330: 6.379
1/8: 9.803
MPH: 71.37
1000: 12.781
1/4: 15.314
MPH: 88.79
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Old 09-03-2011, 10:54 AM   #20
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Re: 83 C10 - short bed - c-notch

ok so since i did the notch ive found that i think i have more frame flex than i did before. like i can see my bed moving a lot more than before and a buddy said when i lifted my truck one day on jack/stands that he saw my whole rear frame flex.

Would it hurt at all to either

A. - tighten down bolts to hold notch on tighter than 65 ft lbs
B. - weld the plate to the frame for a more solid "connection" between notch plate and frame - would assume thatd tighten it all up and end any flex?
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Zach Hall

1983 Chevy C10

R/T: .194
60': 2.322
330: 6.379
1/8: 9.803
MPH: 71.37
1000: 12.781
1/4: 15.314
MPH: 88.79
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Old 09-03-2011, 10:58 AM   #21
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Re: 83 C10 - short bed - c-notch

Quote:
Originally Posted by ProStreet83C10 View Post
ok so since i did the notch ive found that i think i have more frame flex than i did before. like i can see my bed moving a lot more than before and a buddy said when i lifted my truck one day on jack/stands that he saw my whole rear frame flex.

Would it hurt at all to either

A. - tighten down bolts to hold notch on tighter than 65 ft lbs
B. - weld the plate to the frame for a more solid "connection" between notch plate and frame - would assume thatd tighten it all up and end any flex?
welding it in wont hurt anything, you should consider boxing it in with some plate steel if its that bad
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Old 09-03-2011, 11:06 AM   #22
ProStreet83C10
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Re: 83 C10 - short bed - c-notch

how would i go about boxing it in?
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Zach Hall

1983 Chevy C10

R/T: .194
60': 2.322
330: 6.379
1/8: 9.803
MPH: 71.37
1000: 12.781
1/4: 15.314
MPH: 88.79
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Old 09-03-2011, 11:23 AM   #23
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Re: 83 C10 - short bed - c-notch

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Originally Posted by ProStreet83C10 View Post
how would i go about boxing it in?
well its the frame is c shaped, you just buy plate steel and weld it on to the open side of the frame, if you watch truck commercials they alway mention the "fully boxed frame" because its wayyy stronger than a c shaped frame

http://www.hot-rod-garage.com/articl...abrication.cfm
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Old 09-03-2011, 11:38 AM   #24
ProStreet83C10
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Re: 83 C10 - short bed - c-notch

ok so basically get __ gu steel and cut it to the SAME dimensions as my OEM frame then just weld it on all ends?
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Zach Hall

1983 Chevy C10

R/T: .194
60': 2.322
330: 6.379
1/8: 9.803
MPH: 71.37
1000: 12.781
1/4: 15.314
MPH: 88.79
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Old 09-03-2011, 04:44 PM   #25
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Re: 83 C10 - short bed - c-notch

Quote:
Originally Posted by ProStreet83C10 View Post
ok so basically get __ gu steel and cut it to the SAME dimensions as my OEM frame then just weld it on all ends?
no just cut it to fill the open gap on your frame
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