71 Mach 1 - H code (South Dakota)

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agraff55

Active member
Joined
Aug 30, 2022
Messages
31
Reaction score
37
Location
South Dakota
My Car
1971 Mustang Mach 1
I have been told I need to start a build thread so I thought I would get one started… My car is a 1971 Mach 1 H code that was purchased in 1973 (for $3000 🤯) by my dad straight out of high school. It was originally a 351C 4 speed car. The transmission (after multiple clutch replacements) was swapped out for an automatic (FMX) in ‘78 after my parents wedding (mom couldn’t drive a stick). The car was dark green metallic from the factory, but dad repainted it red after the first of many accidents during the. ‘70s.

The car was a regular driver until the mid ‘80s (not exactly a family car) when it was parked. It sat outside until the late ‘90s when I started messing with it when I was in high school. I basically got the car running again (rebuilt engine, trans, etc.) and then went off to college and it sat again in storage for another 20 years. A wife and 4 kids will eat up a lot of free time.

During the pandemic I had some free time and started working on the car in earnest. After a couple years I am well along into the reassembly and hope to be driving this coming summer.

Unfortunately I am missing some pictures from the first stage of disassembly, but I will try my best to go through the project thus far.
 
Here are some pics of the build codes, the car during disassembly, and me trying to teach my son a few things.
 

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Here’s some pics of the major rust damage: both floor pans, engine compartment, cowl.
 

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More rust: radiator support, fender apron, battery tray.
 

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More rust: lower fender, rockers, wheel well, rear quarter
 

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And even more rust: rear seat area, inner fender wells, rear quarter damage, more quarter panel, and tail light panel.
 

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And even more rust: rear seat area, inner fender wells, rear quarter damage, more quarter panel, and tail light panel.
Repairs:
 

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I have been told I need to start a build thread so I thought I would get one started… My car is a 1971 Mach 1 H code that was purchased in 1973 (for $3000 🤯) by my dad straight out of high school. It was originally a 351C 4 speed car. The transmission (after multiple clutch replacements) was swapped out for an automatic (FMX) in ‘78 after my parents wedding (mom couldn’t drive a stick). The car was dark green metallic from the factory, but dad repainted it red after the first of many accidents during the. ‘70s.

The car was a regular driver until the mid ‘80s (not exactly a family car) when it was parked. It sat outside until the late ‘90s when I started messing with it when I was in high school. I basically got the car running again (rebuilt engine, trans, etc.) and then went off to college and it sat again in storage for another 20 years. A wife and 4 kids will eat up a lot of free time.

During the pandemic I had some free time and started working on the car in earnest. After a couple years I am well along into the reassembly and hope to be driving this coming summer.

Unfortunately I am missing some pictures from the first stage of disassembly, but I will try my best to go through the project thus far.
What part of the state are you in?
 
Southeast part of the state, little town called Montrose about 30 mi west of Sioux Falls.
 
After I got all the suspension removed I spent countless hours with a heat gun, putty knife, and wire wheel removing all the old undercoating. Once this was complete and cleaned I treated it all with POR-15 and applied a new layer of undercoating.
 

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I removed the rearend, replaced all the bearings and seals on the axles and 3rd member. Cleaned and some fresh paint.
 

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