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Old 04-03-2019, 09:46 PM   #341
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done some more cab lightening, nailed down the wheelbase (131”) working on anti roll bar and plotting wishbones
 
Old 04-03-2019, 09:58 PM   #342
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Soooooo sexy.
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Old 04-15-2019, 11:53 AM   #343
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You do plan on adding more bars from cab to 4-link area, right?
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Old 04-15-2019, 05:27 PM   #344
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You do plan on adding more bars from cab to 4-link area, right?
yes i do, trying to keep it simple
 
Old 04-15-2019, 05:30 PM   #345
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Old 04-18-2019, 09:02 AM   #346
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finally roller.

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Last edited by DieselheaD; 04-18-2019 at 09:06 AM.
 
Old 04-18-2019, 01:04 PM   #347
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Wouldn't you want to flip the wishbone heim to be stood up vertically?
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Old 04-18-2019, 01:23 PM   #348
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Wouldn't you want to flip the wishbone heim to be stood up vertically?
absolutely not.
 
Old 04-18-2019, 02:15 PM   #349
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Curious, why does it matter?
I've never read into suspensions for racing applications

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Old 04-18-2019, 02:41 PM   #350
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Man, you've got some serious skills. Work looks excellent.
 
Old 04-18-2019, 04:50 PM   #351
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Curious, why does it matter?
I've never read into suspensions for racing applications

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in this situation i’m controlling lateral motion. the rod ends are only designed to handle forces the way i have them payed out.
 
Old 04-18-2019, 04:51 PM   #352
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Man, you've got some serious skills. Work looks excellent.
thanks, i’m just another diesel guy and this is my first ever tube chassis project
 
Old 04-19-2019, 01:48 AM   #353
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Okay, to each their own.
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Old 04-19-2019, 08:56 AM   #354
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I love this build thread, and I’m getting tickled at what’s left of the “cab.” Any idea what the cab weighs?
In regard to the rod ends/heim joints, people need to realize that they are designed to have the load applied thru the ball to the outer cage. That is why orientation is important. On the 4 link they need to be vertical because they are controlling the rotating (vertical) motion/load on the axle, and on the wishbone they are controlling the lateral (horizontal) motion/load on the axle.
 
Old 04-20-2019, 10:38 AM   #355
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Soooooo, the wishbone doesn't cycle up and down with the rear end...?

It's intended purpose isn't to keep the rearend square in the chassis, as in it SHOULDN'T move side to side...?


I'm thoroughly impressed with this logic.
Tell me more.
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Old 04-20-2019, 11:37 AM   #356
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Soooooo, the wishbone doesn't cycle up and down with the rear end...?

It's intended purpose isn't to keep the rearend square in the chassis, as in it SHOULDN'T move side to side...?


I'm thoroughly impressed with this logic.
Tell me more.

dude should of stopped while you were ahead...now it looks like you can’t read or understand how heim joints are supposed to be used.
 
Old 04-20-2019, 12:43 PM   #357
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the cab weighs around 115-120# all the other fiberglass body panels weigh around 105-110
 
Old 04-20-2019, 12:49 PM   #358
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Rightttt.

God forbid any chassis builder sees your bliss.

Get it done darling
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Old 04-20-2019, 01:47 PM   #359
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Quote:
Originally Posted by Beat68CST View Post
Soooooo, the wishbone doesn't cycle up and down with the rear end...?

It's intended purpose isn't to keep the rearend square in the chassis, as in it SHOULDN'T move side to side...?


I'm thoroughly impressed with this logic.
Tell me more.
Yes the wishbone cycles up and down with the suspension (that’s why you need a moveable joint at the ends ) but the wishbones job is to control sideways axle motion and keep the axle centered.
Therefore the rod ends are oriented correctly.
The parallel 4 link keeps the axle from rotating, and also keeps it square with the chassis, but has no capability of centering the axle, hence the wishbone.
A triangulated 4 link wouldn’t need a wishbone, (or panhard bar, or Watts linkage), but that’s a whole ‘nother subject.

Last edited by bracker8040; 04-20-2019 at 01:52 PM.
 
Old 04-20-2019, 01:49 PM   #360
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the cab weighs around 115-120# all the other fiberglass body panels weigh around 105-110
That’s awesome.
What is target finished weight?
 
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