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#1 |
Next project: 1970 K10
Join Date: Feb 2004
Location: Fort Collins, Colo 80524
Posts: 6,685
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How do the cross sills sit? See pic inside....
Which way is the CORRECT way for the wood floor cross sills to sit on the frame? I have seen them both ways, but "B" seems to be the correct way, especially the way the splash pans mount. Anyone else?
Thanks!
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Bob 1970 Chevy K10 LWB "Goldie" 350/TH350 next project!! 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE Last edited by glock35ipsc; 07-19-2006 at 11:58 AM. |
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#2 |
Registered User
Join Date: Apr 2003
Location: Easley, South Carolina
Posts: 491
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Re: How do the cross sills sit? See pic inside....
That'll be "B"
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Richard Dobson |
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#3 |
Semi-Senior Member
Join Date: Feb 2003
Location: Washington, MO
Posts: 390
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Re: How do the cross sills sit? See pic inside....
Can't say for sure what is correct, but we put them in "B" way. Thought that was the way we took them out of afr72's shortstep.
I will look under my 68 longbed fleetside tonite.
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'68 50th Anniversery LWB Custom Fleetside, '77 305 v-8, turbo 350, factory speed alert (still works), '71 drivetrain w/front discs. Some call it ugly yellow, others call it Ochre '83 Jeep CJ-7, <80,000 miles, original owner '04 Chevy Suburban, 4x4, 2500, 6.0 ltr, Predator Diablo programmer '95 GMC K1500 Extended cab |
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#4 |
Next project: 1970 K10
Join Date: Feb 2004
Location: Fort Collins, Colo 80524
Posts: 6,685
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Re: How do the cross sills sit? See pic inside....
Thanks guys!
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Bob 1970 Chevy K10 LWB "Goldie" 350/TH350 next project!! 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE |
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#5 |
State of Confusion!
![]() ![]() Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 46,901
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Re: How do the cross sills sit? See pic inside....
Yep....B is da way. Openeing down, so the cow poop and mud will fall out and not collect and cause rust.
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Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
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#6 | |
Registered User
Join Date: Aug 2005
Location: Pasadena,Tx /Pto Pta DR
Posts: 5,415
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Re: How do the cross sills sit? See pic inside....
Quote:
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#7 |
Senior Member
Join Date: Jun 2003
Location: Westminster, CO
Posts: 3,071
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Re: How do the cross sills sit? See pic inside....
Glock I have a brand new wood floor SWB here that is not assembled....I need this answer too! If I guess...it will turn out to be just the opposite, LOL!!!
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#8 |
Hittin E-Z Street on Mud Tires
![]() Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: How do the cross sills sit? See pic inside....
No need to guess ChevyDude "b" is correct. My truck was bone stock never apart original and thats how they were and thats how they still are.
Think of it this way, that would be a lot of LONG bolts to bolt down a wood floor if "A" was correct, which it's not ![]()
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride ![]() American Born, Country by the Grace of God ![]() 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! Last edited by 67ChevyRedneck; 07-19-2006 at 12:50 PM. |
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#9 |
Next project: 1970 K10
Join Date: Feb 2004
Location: Fort Collins, Colo 80524
Posts: 6,685
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Re: How do the cross sills sit? See pic inside....
I haven't ordered anything for the floor yet, I'll do that very last. I mainly wanted to know so I can cut the rear one correctly to set over the rear gas tank
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Bob 1970 Chevy K10 LWB "Goldie" 350/TH350 next project!! 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE |
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#10 |
Truck Parts Mfg.
![]() Join Date: Jul 2005
Location: Oklahoma City, OK
Posts: 697
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Re: How do the cross sills sit? See pic inside....
'B' is correct as all seem to agree. Steel floors have 'A' and wood floors have 'B'. Don't forget to install the mounting plate under the cross sill at each of the frame bolt points. These plates will keep the cross sill from spreading at the point where it sits on the frame. Also, note the cross sill just behind the wheels is shifted an inch or so from the position of the steel floor cross sill.
Sometimes we sell a reinforcing strip to use in place of a cross sill where the customer needs to clear something like a gas tank. It looks like a cross sill but is only about 1" tall. Just use something at the frame mount point to space up to the reinforcing strip. Mar-Ktech
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GET MAR-K Quality! Restoration and Custom Pickup Parts for Chevy, GMC, Ford, Dodge and Custom Trucks |
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#11 |
Next project: 1970 K10
Join Date: Feb 2004
Location: Fort Collins, Colo 80524
Posts: 6,685
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Re: How do the cross sills sit? See pic inside....
Straight from the horses mouth, thanks! A couple of questions:
1] Enlighten me on the "mounting plates". Are you refering to the factory mounting brackets rivited to the frame, or something else? As far as something to keep them from spreading, could I just weld a piece on either side of where the bolt passes through to keep it from spreading or closing up? 2] I have one of the smaller pieces. I will use that over the tank, thanks for the tip. So, how many regular size and smaller cross sills do I really need? Do any of them run under the front or rear mounting holes of the wheel tubs? I've seen so many pictures and heard so many descriptions of how to install these floors, I have no earthly idea what goes where ![]()
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Bob 1970 Chevy K10 LWB "Goldie" 350/TH350 next project!! 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE Last edited by glock35ipsc; 07-19-2006 at 02:01 PM. |
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#12 | |
Truck Parts Mfg.
![]() Join Date: Jul 2005
Location: Oklahoma City, OK
Posts: 697
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Re: How do the cross sills sit? See pic inside....
Quote:
2: You will need one of the reinforcing strips that is 72 inches long under the front edge of the wheel tubs. Short bed has 3 cross sills, one 72" reinforcing strip, and one 49-1/2" reinforcing strip. Long bed has same reinforcing strips and 5 cross sills. One of the cross sills does run under the rear edge of the wheel tub. With purchase of Mar-K parts, you will receive complete bed assembly instructions to answer many of your questions. This may help http://www.mar-k.com/67-72conv.pdf Mar-Ktech
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#13 |
Senior Member
![]() Join Date: Sep 2002
Location: Greenfield Mass.
Posts: 551
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Re: How do the cross sills sit? See pic inside....
Bob i am with you on that one I have never dismantled one but i own two short steps that i got in tore down shape.I wish somebody who has done this would do A super good rebuild post that would be great just about now.or if there is one how do we find it.
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Certifiably crazy person |
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#14 |
Next project: 1970 K10
Join Date: Feb 2004
Location: Fort Collins, Colo 80524
Posts: 6,685
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Re: How do the cross sills sit? See pic inside....
Excellent! Thank you very much for that info, it helps tremendously!
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Bob 1970 Chevy K10 LWB "Goldie" 350/TH350 next project!! 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE |
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#15 |
Senior Member
Join Date: Jun 2003
Location: Westminster, CO
Posts: 3,071
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Re: How do the cross sills sit? See pic inside....
Bob, I have a set of those plates, they are flat and then angled up on each side to prevent spreading I presume. I bought them from GMC Pauls.
Alex |
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#16 |
Next project: 1970 K10
Join Date: Feb 2004
Location: Fort Collins, Colo 80524
Posts: 6,685
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Re: How do the cross sills sit? See pic inside....
OK, cool. I have plenty of 16ga here, I'll probably just cut some squares and TIG them to the inside of the sills with a 1" or so hole in the center.
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Bob 1970 Chevy K10 LWB "Goldie" 350/TH350 next project!! 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE |
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#17 | |
Senior Member
Join Date: Jun 2003
Location: Westminster, CO
Posts: 3,071
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Re: How do the cross sills sit? See pic inside....
Quote:
That will work!!! I need to learn how to weld!!!!! |
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