Thanks for the compliment! It's a '59 with a 283 SBC. I've put the TPI from a '91 Z-28 on it, and backed it up with an SM-420. The transfer case is a Dana-18/20 hybrid (I'll more than likely go with a set of Teralow 3.15:1 gears in it later this year). The axles are Currie 9-inch, with 4.86:1 gears and a Detroit in the rear, with a TruTrac in the front. I'd like to eventually get a True Hi-9 for the front (for better clearance, and front drive line angles). I've had so much fun with this truck over the years; I'll more than likely be buried in it.