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Re: subframe question
As stated in earlier reply
55 cut at fire wall
73 up cut at rear cab mount.
straight line down the center of both
center line parallel on both
height of center line diff to the ground between the two
and pleanty of length to splice them together.
angle at the front to match the newer frames bump up
I dont know where the assumption that I was planning to butt splace came from, not the case.although a butt splice would be pleanty strong with a double layer patch across the splice to strengthen it. I've done this before.
The 55 frame is much taller from the ground. Thats why I was assuming the newer frame would be pretty much running under the older one. I'll figure the exact specs as I go. Also taking the time to finish in the little details so it doesn't look half**sed.
I built a 64 F100 by using a 64 4x4 front and a 66 rear and slid the 66 frem inside the 64 for about a 2 foot overlap. Strongest point of the frame. used front bed mount hole as my alignment hole on both. Truck ran great for years and frame nevr was an issue.
Also seen many large trucks butt spliced and then overlapped with a long piece of steel that was bolted on. that hid the weld and strengthened it at the same time.
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