Having pulled my spindle pins three times in the past few years and somehow managing to save them. On my last attempt I finials messed up the threads to the point were replacement was going to be a must. Having done some digging around I decided to go the 5/8 bolt route There are many people who say do not do this but if you look at the techno tuning toys rear lower control arms. Granted they are using a hime joint they use a 5/8 bolt. On these grounds I set off to find the right bolt for the job and this is what I came up with. From Fastenal a 5/8-11 x11 yz8 haven taken many measurements and driving the people at Fastenal crazy we decided that this was the best bolt for the job at hand. I hope this helps for anyone considering doing this swap and any info on pros or cons would be appreciated. And here are a few photos of the bolt I will be using. And they cost only $12.90 each . Fastenal part #15335