Building a 2012 EXcursion
Post Fiend
Joined: Aug 2006
Posts: 20,099
Likes: 7
From: Yorkton Sask
Very awesome work!!! OP, I have a question, merely curiosity, not doubting your abilities or skills in any way. Do the frame joint/splice have to be engineered and/or inspected by the local driving authority? Or is it left up to common sense and your own personal experience, knowledge, and skill? Thx...
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Elder User
Joined: Jan 2006
Posts: 818
Likes: 0
From: De pere, WI
Welds all cleaned up and painted. Slide the axle out from under the box and put it under the Ex frame. Decided to use the springs from the truck so we have to move the front spring perches forward 8". Going to have the drive shaft shorten from the 12.
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Elder User
Joined: Jan 2006
Posts: 818
Likes: 0
From: De pere, WI
Very awesome work!!! OP, I have a question, merely curiosity, not doubting your abilities or skills in any way. Do the frame joint/splice have to be engineered and/or inspected by the local driving authority? Or is it left up to common sense and your own personal experience, knowledge, and skill? Thx...
Lead Driver
Joined: Mar 2010
Posts: 5,505
Likes: 256
From: Woodbridge, Ontario, CA
I am to assume relocating the front spring perches maintains the factory Excursion specific wheelbase, correct? Using the '12 rear axle is definitely a no brainer there. For one, you maintain functionality of the factory ELSD and the ratio of the original '05 is likely 3.73 gear, versus the '11 and newer trucks' 3.31 or 3.55 specs.
Have you figured out how you're going to address the DEF and fuel tanks? Are you going to modify the Excursion's fuel filler door, to mimick the factory '11 and newer trucks that have the two fillers under one door, or are you going to use separate filler doors?
Have you figured out how you're going to address the DEF and fuel tanks? Are you going to modify the Excursion's fuel filler door, to mimick the factory '11 and newer trucks that have the two fillers under one door, or are you going to use separate filler doors?
Thread Starter
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Elder User
Joined: Jan 2006
Posts: 818
Likes: 0
From: De pere, WI
I am to assume relocating the front spring perches maintains the factory Excursion specific wheelbase, correct? Using the '12 rear axle is definitely a no brainer there. For one, you maintain functionality of the factory ELSD and the ratio of the original '05 is likely 3.73 gear, versus the '11 and newer trucks' 3.31 or 3.55 specs.
Have you figured out how you're going to address the DEF and fuel tanks? Are you going to modify the Excursion's fuel filler door, to mimick the factory '11 and newer trucks that have the two fillers under one door, or are you going to use separate filler doors?
Have you figured out how you're going to address the DEF and fuel tanks? Are you going to modify the Excursion's fuel filler door, to mimick the factory '11 and newer trucks that have the two fillers under one door, or are you going to use separate filler doors?
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Cargo Master
Joined: Mar 2008
Posts: 3,098
Likes: 136
This may be dumb question only because I have no clue to do something like this. When moving that factory rear spring hanger it looks like a cross member was lined up with it (for strength?) and now it no longer lines up. Is that a problem? Not saying it is just wondering/curious from a fabrication standpoint?
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Elder User
Joined: Jan 2006
Posts: 818
Likes: 0
From: De pere, WI
Custom Autos by Tim does a lot of similar work. Excursion conversions and even 6 door Super Dutys and Exs. Strange that that article would use your video though. That may have been the author's mistake. Here's their YouTube page with their videos: Custom Autos by Tim - YouTube
This may be dumb question only because I have no clue to do something like this. When moving that factory rear spring hanger it looks like a cross member was lined up with it (for strength?) and now it no longer lines up. Is that a problem? Not saying it is just wondering/curious from a fabrication standpoint?
