theres been a great debate over the hole in the lower arms being larger on 3/4 ton arms than on 1/2 ton arms, chris(cant remember user name) says lower arms holes are same size on both so ... I had a pair of 3/4 ton lower arms i could have measure that on, but theyre gone now, but i have a 3/4 ton complete front end i could maybe check that on. i owuld think the holes are larger, but who knows now..
the crossmemeber engine cradles are all same and all the arms will swap all around, 64-87
3/4 and 1 ton arms are all solid pack bushings just like on 67-72 1/2 ton arms,
73-up 1/2 ton arms use rubber bushings and studs unlike all 67-72 and 73-up 3/4 and 1 ton arms, but will all stil bolt onto whichever cradle
there are different diameters(diameter of the bolt itself) of lower arm U bolts however
good luck
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-71/C-10(thx teeitup and crews!)350 4+4/CH465(thx 71Chev, GMCPaul, and CPNE)longfleet bed(thnx meathead95)!still building it-
-'84 Z28(Z28) 1G1AP87G
XEL100000 with H.O. 305/4bbl/190net/hp(L69) 3.73 rear(GT4/YC4) 700R4(MD8-MXO) & other goodies
-79 G20 pass van, 350/th350/10bolt,
paint is overrated
Randy- Lincoln, IL
randy@ccaonline.com
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