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Copyright © 2007
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| Model | SAE Class | Ball Size | Shank Diameter | Shank Length | Min. - Max Mounting Thickness | Finish | tr> | 6390 | 2 | 2" | 1" | 1-13/16" | 1/4" | Chrome | | 6391 | 3 | 2" | 1" | 2" | 1/4" | Chrome | | 6392 | 3 | 2" | 1" | 1-3/4" | 1/4" | Chrome | | 6393 | 4 (6000 lb) | 2-5/16" | 1" | 2" | 5/16" | Chrome | | 6394 | 4 (10000 lb) | 2-5/16" | 1-1/4" | 2-3/16" | 5/16" | Chrome | | 6396 | 1 | 1-7/8" | 3/4" | 1-3/4" | 3/8" | Chrome | | 6397 | 2 | 2" | 3/4" | 1-11/16" | 3/8" | Chrome | | 6398 | 1 | 1-7/8" | 3/4" | 2-1/8" | 7/16" | Chrome | | 6399 | 2 | 2" | 3/4" | 2" | 3/8" | Chrome | | 6690 | 1 | 1-7/8" | 1" | 3" | 7/8" | Chrome | | 6691 | 3 | 2" | 1" | 3" | 7/8" | Chrome | | 6692 | 3 | 2" | 1" | 2" | 1/4" | Stainless | | 6693 | 1 & 2 | 1 7/8" & 2" | 3/4" * | 1 7/8 * | 3/4" | Chrome | | | | * Also includes adapter to fit 1" hole. | | | |
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