I know most of you guys prefer the 14bFF, but I decided the SF was a better choice for my needs. I picked up an 8-lug 9.5 14 bolt for $175.00 about a year ago and converted it to 6-lug, regeared to 4.10 and added a locker. Here are a few pics of the project. WMS to WMS measures out to 67.75in, which is about the same width as the front. I'll take some pictures of it installed in the truck and add them when I get a chance. 14 bolt 9.5 carrier compared to 10 bolt 8.5 carrier 1-in spacers made from .75x.12 DOM. Faced on lathe This is meant as only a temporary solution; I'm thinking of converting to disk I shimmed the wheel bearings out 0.1in by using a 0.020 in shim to get bearing surface of the axle shaft to fully ride on the bearings. You can see the shim if you look closely behind the bearing. I ground the ID of the shim at the bottom of tube to insure plenty of oil gets to the bearings however; the oil level is higher than the shim ID anyway. Axle shaft installed with 1/2-20 Ford lugs pressed in to replace the 14mm GM studs. These studs work much better with the stock Chevy rims. I bought one new axle shaft from 4WParts because it was the same price as the local junk yards were charging for used; about $110.00. The other shaft I got used on ebay. Powertrax No-slip installed. Someday it will get a Detroit, but I picked up this locker on Ebay for a good price.