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Author Topic: Which rear leaf spring rate for a V8?  (Read 1669 times)

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Offline gearhead440

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Which rear leaf spring rate for a V8?
« on: November 03, 2011, 07:14:45 AM »
 My 1980 Pinto needs new leaf springs.  I'm swapping in a 302 and T5 with a 9" rear and was wondering which leaf spring rate to choose.  Speedwaymotors .com lists 3 spring rates:  100#, 125# and 150#.

http://www.speedwaymotors.com/Landrum-Pinto-Mini-Stock-Leaf-Springs,3563.html

 The vehicle will be a daily driver and will use a front sway bar, either stock or 1" diameter depending on oil pan clearance. 

Thanks.
Speed is only a question of money: Just how fast do you want to go?

Offline gearhead440

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Re: Which rear leaf spring rate for a V8?
« Reply #1 on: November 10, 2011, 06:29:43 AM »
After much searching, I've decided to go with 100# on driver's side and 125# on passenger's side especially considering the battery will be trunk mounted.
Speed is only a question of money: Just how fast do you want to go?

Offline Srt

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Re: Which rear leaf spring rate for a V8?
« Reply #2 on: November 11, 2011, 03:26:11 AM »
go for a matched pair.  it makes replacement easier in the future.  also, as for the 125# for the passenger side & the 100# for the drivers side;  does the battery weigh more than you do?
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Offline 82expghost

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Re: Which rear leaf spring rate for a V8?
« Reply #3 on: December 19, 2011, 10:32:54 PM »
go big, i have the 150s, its stiff, but so predictible around the turns, lowers your car just to warn you
98 taurtus, now in heaven
82 exp, the race car, cancer took it away
77 pinto, weekend warrior
92 grand marquis, daily