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More importantly, do they work. MP makes 'em with a $40.00 price tag. I could make them up at a quarter of the cost. Is it worth it? Nothing exotic about my rear suspension; just HD springs and a adjustable pinion snubber.

I run them ( 2 per side ) on the front half only - along with a pinion snubber. Mine are home made also. I was running just a snubber. I think it is an improvement in my case ( very heavy car ). Cuts down on spring arching / wind-up and improves pinion angle on launch ( I'm only running 3 degrees down in a static state ). Don't have enough runs ( 5 )with the clamps in place to say 60 foot times are better yet. I have run my best with them on though.

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