I measured my 4rnr up , Put the rear frame on stands to level even with the front
Then let the rear axle sag so tires touch the ground
The arch height I need is at least 8" but they are using 2" lift shackles (7.5) eye-eye
So it looks like marlins 4" rears (arch load Height of 10") are too much Unless maybe I use stock rear shackles ?
![Undecided :-\](https://board.marlincrawler.com/Smileys/marlin/undecided.gif)
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then if they do sag or wear in I could add shackls back in
How do you guys figure it out ?