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Old 02-21-2014, 09:04 AM   #6
Keith Seymore
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Join Date: May 2009
Location: Motor City
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Re: Anti-wrap spring perches

Quote:
Originally Posted by whitedog76 View Post
I guess the idea behind the longer perches is that they will bottom out on the springs when you get on the gas, helping to limit some of the axle wrap. Kind of the same principle as a traction bar.
My assumption as well - and there is no way that slight additional length will counteract the forces causing spring windup. That's why people control the windup with traction bars (or by adding extra leaves to the spring pack).

Quote:
Originally Posted by whitedog76 View Post
My concern is when loaded or flexing over a bump. Will they limit some of the spring travel or cause unneeded strain on the springs?

My last truck had Leafs that were fairly flat. In fact the bottom spring was actually bent backwards. I can see perches like these being a problem in that situation.
Again - that additional length is so insignificant as to have no measureable affect. The perches will cause the same amount of stress as the production versions; only in a slightly different spot on the spring.

K
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