I got a mailer yesterday advertising that on May 20 and 21 only there will be a 50% off installation special going. Whoever ordered my truck originally spec'd 2.73 gears with 700R4 trans. It won't hold OD with the teensy 235/75/15 tires on it now. So I'd like it regeared with 4.11s. Plus the rearend has about 1/8 driveshaft turn worth of slop in it. I called up there and they regularly charge $350 rear and $385 front for regearing. I asked if they'd honor the coupon and they said sure and if I wanted to get it done before that weekend, they'd make it happen. Sounds like a pretty good deal. Buy the parts and get both my 10 bolt axles rebuilt and regeared for $370 or so in labor. Thing is, I don't trust anyone to change my oil. When it comes to setting up a diff correctly I'm wary of these do-everything guys at 4WP. They can probably lift a IFS Z71 like nobody's business, but regearing a diff? Normally I'd go to a reputable drivetrain specialist for this kind of work. Anybody have any experience with the techies at 4WP? - Especially @ the Fort Worth store or with regard to rear end work.