Boxed frame

[1949d100]

How much can our 1/2 frames handle before they need to be boxed?

[Allen I.]

About 50 years of regular use...

[48Dodger]

I would check it for stress cracks, repairs, and alignment. If you're gonna go with a larger motor...box it. If you're going with a stock set-up, make sure rust isn't hiding in the mouting points of the suspension, etc....I believe there was a thread with pics concerning stress repairs between the cab and box.

48D

[Allen I.]

I think this is the thread...

http://www430.pair.com/p15d24/mopar_forum/showthread.php?t=11952&highlight=frame+hole

[smallblockjunkie]

I am installing an ls1 in my truck. my whole frame is boxed with one solid plate on each side. the cross members were removed and then welded back to the new plate, 3/16 inch thick plate.

[woodscavenger]

I agree with 48D. I have seen several threads on the weakness of the frames. The bed bolts went through the frames and cause a point where the frame can crack. Mine has had fish plates added at 2 locations previously.

[grey beard]

Not only are there issues where the factory drilled through the frame flanges - a definite industry no-no - but the frame material on half tons is only 1/8-inch steel. Better box 'n beef, if you're gonna' be running high torque through your ride. JMHO

Good Luck:)

[MBF]

If you're in an area where snow/salt or mud is an issue you may want to make sure that you have some type of drain installed to allow moisture and kicked up sediment to drain or so that you can flush out the frame. Toyota just did a massive truck recall on a large age spead of their trucks due to the boxed frame rotting to the point of failure. I also believe they changed the design of the frame to a more open type based on the problems they were having. Mike

[1949d100]

I am not sure what motor will be going into it, but I am thinking that it can't hurt to box it.