Nice truck.

 

you gonna be sleeping alot in it?? Since its a show truck and all...then just extend the frame..those trucks with a stretched out frame are sick

 

Cant blame you ther. i dont like side pipes but the is just ny opinion.

 

looks good as it is

 

8" flat top stacks with the ting tings

 

how do they do the frame stretches on them trucks anyway? I know it's just c-channel frame rail section, but do they cut the frame and weld in the extensions or is it cut and then bolted in or how do they do it?

 

you going to drive it to shows of tow it

 

If you're planning on stretching in front of the drivers:

Cut the frame at an angle, or V it, or whatever...fab guys have their own ways, but never cut straight down vertical..that's bad.

Then, add your new piece, weld it in place, fishplate the hell out of it, and add a inner sleeve or outer channel "double frame" on the stretched area.

If someone is planning on hauling weight, that's the best approach, along with additional gussets in the bunk area.

Pure show trucks which run around bobtailed all the time are sometimes done differently.


If you're planning on stretching behind the drivers, like for a motorhome, toyhauler, or what have you, the best approach is same as above, although some people just cut the back of the frame at an angle, weld on an extension, and fish plate it without the double channel....

 

Mr. Miyagi, not questioning your advice, I'm just trying to understand why. So, why would your "V" cut or cut at an angle as opposed to straight down? Since you seem to know what you're talkin about, where would you begin to take your measurements from to ensure that you're cutting from exactly the same place on both frame rails? Finally, what is fishplateing? I do some and I stress SOME fab, LOL, at my job. I'm still learning, I've just never heard that term. I also read on a big truck forum that it's good to heat the surrounding area of the frame around where you're gonna weld so everything cools down at the same rate to avoid the weld trying to pull away from the frame due to one or the other cooling faster I'm guessin?

 

Angle cuts or V cuts yield stronger finished products. The welded area is going to be the weak point, or the areas directly around it, so having a V notch or angled cut distributes the load over a larger surface area. There is some weld theory and metallurgy involved to get into a long winded technical answer, but in a nutshell that about does it...

A fish plate is another piece of steel welded over the top of a connected area to add additional support and strength. You weld it up, grind the area smooth, then weld another small section over the top of the joint. That smaller section is the fish plate.

Heat treating is pretty advanced, and will yield a better finished product. The key is the cooling down at the same rate part....too fast and you'll end up with nearly case hardened steel...strong against wear but brittle--bad for a frame. Heat stick pens are good for this....similar techniques are used for welding cast iron.

To get the job right, there are many, many, MANY measurements that need to be checked, checked, rechecked, and checked again. Lots of levels, plumb bobs, string lines, keen eyes, patience, and a big well equipped shop to handle it.

To do it right takes talent and experience. A lot of people stretch frames who have no business doing it, in my humble no-mind opinion....of course hauling loads of logs in and out of the woods is different than building a show truck or something that hauls light, fixed loads.

Just my opinions...could be wrong, probably are....