Ok, so... That's two people says it won't work, one guy says it's mounted in the same spot, and EVERYONE agrees that the in bed aux tank is a bad idea [emoji1787]. The more people I ask about the aux tank the more reasons against it seem to pop up, the only real pro to that aux tank would be the ease of install.
I crawled under there yesterday to do the first post build oil change and there is a surprising amount of stuff shoehorned under there. My dad knows the early flat tappet style big blocks very well and told me about this super duper FOOT LONG oil filter he used in his 427 powered dump truck and still uses in his 454 powered franken truck, but I saw that the front drive shaft is directly under the standard oil filter mount location. There is what looks like a factory installed 90° adapter for the oil filter so the filter sits horizontally vice vertically. BUT that's all on the front end of the truck and the back end seems to have a lot more room to play with underneath...
It's kind of hard to get a good picture of what kind of room there is when I'm laying flat on my back. I'm hoping to get it on a lift once I find a reputable mechanic shop local to me to help me give it a once over. I'm really hoping to find someone who has 1): tried this and been successful, or 2): tried this and knows for a fact that it won't work. Going by the pictures on Summit it does look like there is a difference in the shape of the 25 vs 34 gallon tanks at the front part of the tank, but as far as the length difference goes I think it's barely a foot longer. In studying the pictures it looks like the sherman brand 34 gallon tank is the closest in shape...
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