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Re: Leaf spring perch variations???
I concur with the above. 40.5" on 67-72 4x4 and 42.5" on
73 and up 1/2 and 3/4 ton with the K30 at 40.5".
The '69-'72 4x4 trucks also use 2 1/2" wide leaf springs and the 2x4 use 2" wide springs. Longhorn trucks are 2 wheel drive but they have 40.5" spring centers and use 2 1/2" springs just to mix things up.
Not a '67-'68 guy so can't speak to what they had but I know the springs are different.
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44 Willys MB
52 M38A1
64 Corvette Coupe
68 Camaro 'vert LT1 & TH700
69 Z/28 355 12.6's @110
69 Chevy Short Step 4 1/2"/7" drop
72 Jimmy 4WD 4spd 4" & 35's
02 GMC 2500HD 4x4 Duramax
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