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75 620 on a 98 s10 frame


Giantsfan98

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That's a really open ended question. Do you have a king cab? Do you have a long bed? What wheelbase is the s10 frame? Can you weld sheet metal? Can you weld the frame? What tools do you have available? Are you comfortable with how much wider the stance will be, since s10 axles are wider than 620s? Yeah, it can be done, if you have the tools time and desire to do it.

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If you are a competent welder and you are determined,  I'm sure it can work.  I would look at the two bare frames and get some measurements of basic widths and lengths.  Take note of the vertical ups and downs.  Look at not just the frame width, but the track width as well.  The steering will also have to mate up and you'll have to understand the layout of the engine bay possibly with the engine in there.  A lot of trial end error with stuff like that.

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I gotta pick this s10 up in a week or two and il get it stripped down and then I will see what's going on with it I think it would be easier to just use the whole frame if I can rather than swapping everything to this frame plus this frame is rotted out so I think I am gonna do this if it is possible

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5 inches of track width is quite a difference, which may not be a big deal if you don't mind the tires sticking out.    Narrowing a differential adds to the cost.  The only benefit I can see doing the swap over a 720 frame is the 5 lug bolt pattern and parts availability.

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Something else to consider, which engine?  4.3 v6?.  You're going to have to measure where the front wheel is relative to front of the engine is to see how much room you have for the radiator.  V6's are pretty short front to back so it may not be an issue.  You're also going have to check the back of the engine to clear the firewall or be prepared to recess the firewall.

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