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Old 07-28-2024, 10:40 PM   #1
kitsbeach
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3/4 Ton Long to Short & Static Drop Square One

I just got this truck back on the road after shortening and dropping it, thought I'd post a few pictures of the build.

As I found it:

Name:  First day square one-4.jpg
Views: 307
Size:  89.7 KB


Today short test drive:

Name:  Brighton July 28- front  quarter view.jpg
Views: 294
Size:  49.7 KB
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Kitsbeach (Ken)

1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"
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Old 07-28-2024, 10:44 PM   #2
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Re: 3/4 Ton Long to Short & Static Drop Square One

A couple more before and after:

Name:  Square One Day One.jpg
Views: 294
Size:  94.3 KB

Name:  Brighton July 28 drivers side.jpg
Views: 287
Size:  50.8 KB
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Kitsbeach (Ken)

1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"
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Old 07-28-2024, 10:53 PM   #3
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Re: 3/4 Ton Long to Short & Static Drop Square One

Looks great. What static drop did you use? I'd like a nice driver drop.
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Old 07-28-2024, 10:57 PM   #4
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Re: 3/4 Ton Long to Short & Static Drop Square One

I call her Square One because as soon as I bought it I accidentally ended up with another that I call Square Two:

Name:  Square Twp April 12 2024-5.jpg
Views: 284
Size:  41.0 KB

Square Two is actually a nicer truck but they are both great low mileage trucks with great patina and very little rust.
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1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"
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Old 07-28-2024, 11:01 PM   #5
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Re: 3/4 Ton Long to Short & Static Drop Square One

Square One (I believe) was some kind of work truck up in the Fraser Canyon, British Columbia, four or so hours north of Vancouver where I am now.

She's got the bumps and bruises of a yard truck but lots of obvious maintenance. Everything is greased up and running nice. Nicer now that I've cleaned the heck out of it and gone over everything.
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Kitsbeach (Ken)

1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"

Last edited by kitsbeach; 07-29-2024 at 01:10 AM.
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Old 07-28-2024, 11:06 PM   #6
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Re: 3/4 Ton Long to Short & Static Drop Square One

Ripped the landscape bed off:

Name:  Landscape bed delete-1.jpg
Views: 294
Size:  79.3 KB

Name:  Landscape bed delete-2.jpg
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Size:  85.5 KB

That was actually hard work. I was told the truck had a service truck bed on it but the guy threw it in the dump so that he could build this and landscape his yard.

Gone now anyway...
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1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"
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Old 07-28-2024, 11:22 PM   #7
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Re: 3/4 Ton Long to Short & Static Drop Square One

The first thing I did was backdate the grille to the 73-74 style to get the vibe I wanted:

Before:

Name:  Old grille Sept 2023-4.jpg
Views: 296
Size:  54.3 KB

Old grille off and orange marker lights added:

Name:  Grille backdate -7 grille removed orange lenses added.jpg
Views: 291
Size:  65.9 KB

This truck is a 1980 so there was a little change to where the 1973 lower grille bar attaches. I just cut the tabs of the lower grille bar and used some trim tape to install it (pic doesn't show it that well):

Name:  Early lower grill bar tabs cut off to fit 1980-2.jpg
Views: 285
Size:  51.6 KB

Name:  lower grille bar taped on.jpg
Views: 291
Size:  76.8 KB
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Kitsbeach (Ken)

1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"
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Old 07-28-2024, 11:24 PM   #8
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Re: 3/4 Ton Long to Short & Static Drop Square One

Before and after grille backdate:

Name:  Old grille Sept 2023-4.jpg
Views: 291
Size:  54.3 KB

Name:  1973 grille installed -4 nightime.jpg
Views: 293
Size:  57.5 KB
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1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"
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Old 07-28-2024, 11:46 PM   #9
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Re: 3/4 Ton Long to Short & Static Drop Square One

Quote:
Originally Posted by shambles View Post
Looks great. What static drop did you use? I'd like a nice driver drop.
It's 2 1/2" drop spindles and 3" lowering springs in the front, and just a flip kit in the back but it now has 1/2 ton leaf springs in the back because short beds have 52" springs and long beds have 56" springs and I wanted stock back bumper brackets.

It also has the 16" wheels so it sits a bit different than a 1/2 ton truck would. I kind of like it. Looks short and tough. The front is about a 1/2 inch higher than the back, which I'm also happy with but it may settle.

The 3/4 ton springs up front are a bit bouncy, I may go to 1/2 ton front springs, but I think it would end up a bit lower.

No rubbing at all, its very practical.

Tires are 225/75R16 so pretty skinny
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Kitsbeach (Ken)

1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"

Last edited by kitsbeach; 09-18-2024 at 02:43 AM.
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Old 07-28-2024, 11:51 PM   #10
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Re: 3/4 Ton Long to Short & Static Drop Square One

Not many people drop and shorten a 3/4 ton but it had very little rust and great patina so I couldn't help myself I had to grab it.

I probably could have done a 1/2 ton conversion all round, but this is what I did.
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Kitsbeach (Ken)

1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"
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Old 07-29-2024, 12:15 AM   #11
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Frame cuts

I did a bit of googling and talking to people this time about the frame cuts and fish plates (I've shortened my '67 too).

I like the thoughts shown in this picture:

Name:  wrong better best fishplate design.jpeg
Views: 338
Size:  43.6 KB

Also the idea of the fish plate welds going different directions than the stressors, like this example:

Name:  example fish with open ends.jpg
Views: 298
Size:  55.4 KB

So what I settled on this time was rounded ends on my fish plates so that the welds would be in different angles to the stressors, and also not to weld the plates continuously (used skip welds), so the plates actually have ability to flex.

I got quite a bit of advice on this from pro welders.
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Kitsbeach (Ken)

1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"

Last edited by kitsbeach; 07-29-2024 at 12:51 AM.
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Old 07-29-2024, 12:22 AM   #12
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Frame cuts and fish plates

BUT...I also knew that the chance of me getting the zigzag cuts perfect would be near impossible.

The zigzag cuts are the most popular on this site and all over the internet, but that means 6 different cuts ON EACH SIDE. Getting them to match up perfectly would be difficult.

So I settled on nice big strong fishplates, with a good design, along with straight cut frame cuts.

Name:  wrong better best fishplate design.jpeg
Views: 292
Size:  43.6 KB

Basically wrong on the frame cuts and best on the fish plates.
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Kitsbeach (Ken)

1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"
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Old 07-29-2024, 12:44 AM   #13
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The cuts

For the frame cuts I picked somewhere that would leave room for the fish plate to extend past the cut a lot without running into a spring hanger.

My location was a bit close to the cab, which made it a little hard to work in there later, but it was okay. I re-drilled the cab crossmember holes through the fishplate (trying to find a picture of that).

Anyway here are the cuts:

Name:  Frame cut location.jpg
Views: 268
Size:  61.0 KB

Name:  Frame cuts-4.jpg
Views: 292
Size:  63.7 KB

I removed 14" from the middle and later will remove 5 3/4' from the rear (more on that later).
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Kitsbeach (Ken)

1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"

Last edited by kitsbeach; 07-29-2024 at 01:17 AM.
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Old 07-29-2024, 12:45 AM   #14
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No turning back

And here she is cut:

Name:  Frame cuts she's cut 15.jpg
Views: 282
Size:  58.4 KB
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1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"
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Old 07-29-2024, 12:47 AM   #15
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Cut and clamped

Name:  Cut and clamped -4.jpg
Views: 285
Size:  61.0 KB

By the way these jack stands are actually RV jacks, which made it easy to adjust the height precisely.
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Kitsbeach (Ken)

1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"

Last edited by kitsbeach; 07-29-2024 at 01:13 AM.
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Old 07-29-2024, 12:56 AM   #16
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Fish plate design

Here's my fish plate mock up, all done with a grinder:

Name:  Fish plate design -1.jpg
Views: 277
Size:  66.7 KB

Name:  Fish plate design -2.jpg
Views: 289
Size:  58.5 KB

Name:  Fish plate design -3.jpg
Views: 281
Size:  66.8 KB

Name:  Fish plate design -4.jpg
Views: 287
Size:  58.5 KB

Name:  Fish plate design -5.jpg
Views: 272
Size:  103.9 KB

That metal is from the 14" piece of the frame that I removed.
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1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"
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Old 07-29-2024, 12:59 AM   #17
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Fish plate mock up

Bolted the fish plate in place using cab crossmember bolts and some more bolts later (no pics tho):

Name:  Fish plate design -6.jpg
Views: 289
Size:  68.9 KB

Name:  Fish plate design -7.jpg
Views: 288
Size:  59.9 KB
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1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"
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Old 07-29-2024, 01:03 AM   #18
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Left side fish plate

Just realized I have no pictures of the actual frame welding and grinding but here are a couple of the left side fish plate skip welded in place:

Name:  Welded fish plate left side -1.jpg
Views: 296
Size:  56.7 KB

Name:  Welded fish plate left side -2.jpg
Views: 278
Size:  51.9 KB
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1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"
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Old 07-29-2024, 01:05 AM   #19
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Right side fish plate

Name:  Welded fish plate right side -3.jpg
Views: 273
Size:  59.4 KB
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1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"
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Old 07-29-2024, 01:08 AM   #20
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Moving again after frame weld

Here she is moving again after the frame weld:

Name:  moving again after cut fram.jpg
Views: 276
Size:  67.6 KB

All the dirt you see is actually from all the cutting and grinding that went on. My garage will never be the same.!
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Kitsbeach (Ken)

1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"
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Old 07-29-2024, 06:38 PM   #21
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Re: 3/4 Ton Long to Short & Static Drop Square One

Quote:
Originally Posted by kitsbeach View Post
It's 2 1/2" drop spindles and 3" lowering springs in the front, and just a flip kit in the back but it now has 1/2 ton leaf springs in the back because short beds have 52" springs and long beds have 56" springs and I wanted stock back bumper brackets.

It also has the 16" wheels so it sits a bit different than a 1/2 ton truck would. I kind of like it. Looks short and tough. The front is about a 1/2 inch higher than the back, which I'm also happy with but it may settle.

The 3/4 ton springs up front are a bit bouncy, I may go to 1/2 ton front springs, but I think it would end up a bit lower.

No rubbing at all, its pretty practical.

Tires are 225/75R16 so pretty skinny
Cool, Thanks for the info. I've been thinking about the 5/7 or possibly 4/6 drop.
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Old 07-29-2024, 06:51 PM   #22
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Re: 3/4 Ton Long to Short & Static Drop Square One

Following!
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Old 07-29-2024, 07:36 PM   #23
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Saginaw 3-speed swap

Some of these pictures are out of order but I swapped in a Saginaw 3-speed manual in place of the (I think) SM465 "bull low" 4-speed.

Adjusted Hurst shifter on the bench beforehand:

Name:  Saginaw shifer adjusted and ready for install best.jpg
Views: 269
Size:  68.3 KB

Dropped this old hunk out myself, probably wasn't the wisest idea because it was heavy and almost killed me:

Name:  Transmission swap old 4-speed.jpg
Views: 252
Size:  50.6 KB

Compared input shafts and I didn't need a new clutch disc (yay.!).

Name:  Transmission swap -2 compare input shafts.jpg
Views: 260
Size:  110.5 KB

Side to side comparison of length and shifter position:

Name:  Transmission swap -3 compare side to side.jpg
Views: 260
Size:  69.6 KB
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Kitsbeach (Ken)

1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"
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Old 07-29-2024, 07:42 PM   #24
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New trans in

Lifted new trans in (with some help). Its always a bit of a wrestle then finally it pops in.

I had to cut a hole for the new shifter location and unfortunately cut it a little too far back. I'll have to patch it up when I do my floor coverings.

Hate wrecking the nice floors and high hump.

Name:  Shifter hole in floor slightly too big.jpg
Views: 254
Size:  110.5 KB
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Kitsbeach (Ken)

1967 C10 LWB (now SWB) Fleetside 6cyl Saginaw three-on-the-tree "No Frills"

1980 C20 Long to short & static drop "Square One"
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Old 07-29-2024, 07:49 PM   #25
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Shifter hole

Name:  Floor shifter hole-9 copy.jpg
Views: 260
Size:  110.5 KB

Name:  Floor shifter hole-10 copy.jpg
Views: 253
Size:  98.1 KB
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1980 C20 Long to short & static drop "Square One"
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