if your going same year dual front hub to same year single front hub all you need it the hub, bearings and seals. The spindle is the same on 3/4 to 1 ton single and dual rear wheel. bearings changed as Grigg said above in 47-52/53-59


Dave Chapman
The Hollister Road Company
713-937-0387
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www.hollisterroad.com
www.thoroco.com