Will keep this short so I don’t upset the mods - fyi this swap is 95% plug n play. Here’s the truck, 2017 avalanche grey no sunroof:
![Image]()
and the gen 3 on a lift helped make everything go smoothly
![Image]()
Scanned and checked everything would line up before buying tons of parts
![Image]()
Here is the new frame.
![Image]()
It gets rid of leaf springs with a 5 link in the back
![Image]()
And it offers improved suspension geometry and driveline in front. I reinforced with weld anyway
![Image]()
Here is the assembled rear end with 4.88s
![Image]()
Time to go:
![Image]()
Lifted the bed and cab
![Image]()
lotta work, totally worth it
and the gen 3 on a lift helped make everything go smoothly
Scanned and checked everything would line up before buying tons of parts
Here is the new frame.
It gets rid of leaf springs with a 5 link in the back
And it offers improved suspension geometry and driveline in front. I reinforced with weld anyway
Here is the assembled rear end with 4.88s
Time to go:
Lifted the bed and cab
lotta work, totally worth it
