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Frame/Suspension/Brake... Talk & Q&A All things... Frame/Suspension/Brake

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Old 09-10-2017, 08:41 AM
serrata serrata is offline
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Location: Orlando, FL
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Default Which portions of the frame should be "removable?"

I'm in the middle of making motor mounts and cross-members on my frame.

The engine and trans that I'm using are huge. 7.3L turbo diesel and 4R100 trans with 4wd transfer case. I recognize the need to make everything beefy to handle this weight.

I'm also making this thing as low as I possibly can. The oil pan and trans pan hang very low, so my motor mounts will need to be pretty tall.

4 link suspension front and rear.






I plan on building motor mounts from 4"x4" stock @.25" thickness and attaching at an angle to the frame.

(1) Can I make a permanent cross-member under the engine, as long as I have a couple inches of clearance under the oil pan? Then I would have more structure for the engine mounts to weld to.

(2) Are there any places under the front of the engine that I should not place a cross-member under? There is plenty of clearance under the fan.

(3) Transmission cross-member: I assume that I would need this removable, since it would likely be difficult to remove the transmission for service without removing the body if I don't, right?

(4) Overall assumption for future maintainability: Engine would need to come out from the top, while transmission and transfer case would come out from the bottom, right?
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Old 09-10-2017, 06:42 PM
akatao akatao is offline
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sounds right to me
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Old 09-10-2017, 07:00 PM
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Skip Skip is online now
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having done a few engine swaps, I have found the oil drain plug in difficult-to-access locations at times. Might want to check that.
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