4-wheeling without the trans crossmember

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1971ford
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4-wheeling without the trans crossmember

Post by 1971ford »

I haven't had time yet to fabricate or modify the original transmission crossmember (the one under the bellhousing that used to bolt to the top of the frame rails, with supports going to the bottom of the frame rails on each side). So right now I have the beefy engine crossmember (which I shortened for the cummins), the transmission mount crossmember I fab'd and the rest of the crossmembers behind that.
I went out with some buddies yesterday on a trail but didn't "flex" the truck at all because i'm paranoid that with the lack of this crossmember I could tweak something :hmm: Thoughts?
-Ryan
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averagef250
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Re: 4-wheeling without the trans crossmember

Post by averagef250 »

It wouldn't be easy to permanently bend something framewise under your truck with just the truck's own weight and slow speeds. You can twist the frame up, but not likely you'll pass anything's yield point where it actually bends and stays that way.

In flexing your frame I'd be most concerned with the gen1 engine mounts you used. Something to keep any on atleast.
1970 F-250 4x4 original Willock swivel frame chassis '93 5.9 Cummins/Getrag/NP205/HP60/D70
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1971ford
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Re: 4-wheeling without the trans crossmember

Post by 1971ford »

averagef250 wrote:It wouldn't be easy to permanently bend something framewise under your truck with just the truck's own weight and slow speeds. You can twist the frame up, but not likely you'll pass anything's yield point where it actually bends and stays that way.

In flexing your frame I'd be most concerned with the gen1 engine mounts you used. Something to keep any on atleast.
Thanks for the input Dustin.

But I didn't use the 1st gen mounts I fabricated my own engine mounts using polyurethane bushings, no way those suckers are coming apart :evil:
-Ryan
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Re: 4-wheeling without the trans crossmember

Post by averagef250 »

Nevermind then, missed that part!
1970 F-250 4x4 original Willock swivel frame chassis '93 5.9 Cummins/Getrag/NP205/HP60/D70
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