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Re: 1963 K10 Axle Swap - When did the rear perch width get wider?
1/2 and 3/4 tons got wider in '73. Compared to the 69-72 trucks. I THINK 67-68 same spring perch width but they have unique springs.
I know zip about trucks earlier than that.
One ton 4x4's kept the same narrow spring perch spacing as the 67-72 trucks through the end of the square bodies.
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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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