You may be able to measure the length you need. Take into consideration offset and ball seat or taper. Measure bolt, 12mm probably, or 14mm 1.50 thread, probably, then shank length. Changed rims on the SD. I bolted on a stock rim, took measurements, then bolted on new rim, more measurements, went from there. Had to get new bolts and spacers.

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83 SD

84 CD