Axel spring perch not Flat?

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Gumby

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Ok between rain drops I got the axel bolts out. The spring perch is not Flat as I expected. Should it be Flat is the Question? This is a 2014 Roush I believe the previous owners did a lot of spinning the tires. The perch is really rounded letting the axel "rap" or roll forward and back. The pic is of a straight edge sitting on the perch. if is should be flat I am open to suggested fit. When the rain lets up I will try to get better pics.
 

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other pics
 

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New recaros

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That’s correct, if it were flat, you would snap that spring right at the edge. They are spreading out the load.
 
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Gumby

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@New recaros your response doesn't make any sense to me. The block between the housing perch and the spring is flat where it touches the spring.
There is Obviously a lot of movement in the past the holes in the perch are really wallowed out. there shouldn't be movement.
 

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I thought on all the roush and lifted trucks using springs to lift them, they removed the block and the leaf pack sat on there. I must be wrong if you have a block between
 
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So this was my fix. I took 3/16 steel plate made 2 new pieces to weld on to the axel housing perch. Welded them all the way around. I had to fill the ends... This worked out good.
The holes were so badly worn.
I just got back from test drive. It drove nice and straight. The roads were still wet... so no launching (from 40 MPH) but feels way better. I think it is fixed. Thanks to all who responded to this and my other thread.
Now if I go with another set of springs I will have something flat to bolt them to.
 

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