Big MAW build (Ford E350 7.3)

Beckmanfarm

New member
Recently my wife and I tracked down our dream family van: a 1999 Ford E-350 with the 7.3 Powerstroke. ? It took us searching for a long time to find one that met my two requirements. 1) I wanted it to have fewer than 100k miles (89k is what Big MAW has) and, 2) I wanted it to have very little rust. We bought this van from New Jersey, sight unseen, though we did have it inspected by a AAA mechanic prior to purchasing it. The experience was a nightmare, when the van arrived we anticipated the worst (long story) but we were pleasantly surprised and excited to move forward with our build.

Build goals: Create a van that is built around utility and fills my family’s needs. We have 4 young kids and vacations are expensive when you fly and rent a car. This van solves that. We tow a lot and need a rig that can handle the loads of rock, excavators, etc. This van solves that. We have a big extended family that is active in our lives and just need a people mover. This van solves that. My wife loathes driving a minivan. This van solves that and so many other needs for our crew.

The name: Big M.A.W. came about because as my search went on and on, my ideas for it grew. Everytime I came up with a new idea i would run and show my wife; her response always was “might as well”. And it’s a play on words, too: my wife is a petite woman who is a mama to four kids. So it’s a little hilarious that this small lady will be driving this big car.

Project scope of work: Small engine mods for reliability. UJOR 6” conversion, new interior, new exterior look. And of course the basics like roof rack, ladder, nerf bars, etc.

First thing we did was gut the interior so I could assess the rust issue. We bought the van under the pretense that there was very little rust. The mechanic who was paid to inspect it said there was very little rust and it was sound. When it showed up I spent about 45 minutes under the van and found two spots that it was clear someone tried to hide some rot (and did a good job at it). So I gutted the van.

After I opened it all up it was clear I had some significant patch work to do. The seller ended up giving me money back to cover some of the headache but in order to pay someone to weld in a new front floor pan assembly we are talking $4-5k. I don’t have that kind of money. So…. its gonna be me, the welder, and a couple weeks of late nights.

When I found the rust i started to have my doubts about the prepurchase inspection so i decided to take it to my diesel shop locally and have them go through EVERYTHING. It just got done there and everything came back looking great minus a few small things and the rotted floor pan. The diesel shop (plateau diesel in WA) did an amazing job. I had them do a compression test and while they were in there they replaced the glow plugs and UVC harness.

Currently, I have purchased a whole front end for 200 bucks from a junk yard. I’m going to remove the front floor pan and install it in Big MAW. They also gave me the dash, so i can salvage that and install it in mine (the junkyard find was in better condition, as mine is a bit faded.)
 

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Beckmanfarm

New member
A few pictures
 

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Beckmanfarm

New member
Couple pictures of the rot and a couple of the new pan.
 

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Adventurous

Explorer
Great find! You are right, they are exceedingly rare, especially one with less than 100K on it.

Just make sure to go nuts with sound deadener while you have the interior out. Those things are resonance chambers.
 

Beckmanfarm

New member
Today was a long day of prepping the Donor van and consultanting my auto body pros on where to cut/approach the repairs.

I have a game plan and will be getting after it hard this next two weeks
 

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CrazyDrei

Space Monkey
Your donor looks in better shape than the Jersey van. Also why did you settle on an east coast van thats known to have rust issues? At that point would a southwest van with double or triple the miles and a price tag of less than the shipping set you back less with a crate motor than all the rust repair in this one?
 

Beckmanfarm

New member
Good question. The simple answer is ignorance. But now that I have the van I’m actually happy I didn’t go the route your suggesting. The van that I have is mechanically impeccable. It was a municipality transport that was never driven much but maintained on a schedule. My diesel shop went through it and was wowed with how strong and well taken care of everything was, minus the floor board rust.

After yesterday’s consultations with my auto body friends they all said that the rust looks worse than it is. All the cross members are clean with no rust. The rust seems to have come from the top down, which is weird and poses some questions of where the moisture came from. All in all, the repair is going to cost me $200 and a few weekends to fix. That’s worth 100k in miles to me.

I’ll continue to post updates on how I go about the repairs but I think it’s going to be more straight forward than I originally thought.... I guess only time will tell though. ??‍♂️
 

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