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Cutting chassis

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15 years 7 months ago #3268 by GM Diesel
Cutting chassis was created by GM Diesel
Ive been reading the start of a new topic in another thread and thought I would kick off the topic.
If you are planning on chopping a chassis try and get your hands on or atleast read the chassis section in the workshop manual.
There are very specific details regarding temper, pre heating, post heating and what type of welding gear you should use.
If your planning on shortening an old girl up look at rolling the back axle and suspension fwd and drill new holes to mount, rear crossmember to come fwd also then chop your excess off the back. This is a much better option than trying to chop a piece out of the middle. It wont work for all trucks.
Extending your wheel base is where it gets interesting. If you can find a donor chassis it makes it easy as you can cut one behind the cab and one back towards the rear front spring hanger and join the two and pick up a meter or more. This is the method we used with all our conversions. It is important that an inverted L doubler runs right through between front and rear spring hangers. If anyone is interested I can post some sketch's of this.
Cuts in chassis should be 30

GM Diesels - Converting diesel into noise since 1938.

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