Re: 95\' Turbodiesel..........
Assuming you have an auto tranny, it's a 4L80E, if a manual a NV4500. It should also have a C14 S/F min. quite possibly a F/F rear axle. Many GM diesels have a F/F even with smaller axles. I have the specs off a 81 1/2 ton with a diesel 5.7, and it had a F/F RA. Hp around 170, torque 330 ft lbs, assuming a L56 which was put in the under 8600 gvwr trucks. If a L65, then it should have minimum 180hp/385 ft-lbs of torque. Fuel milage should be close to 20 freeway, mid to upper teens in town.
There are a few other things one can do to that motor to gain hp, if you buy it, I'll post that info. since it's a 95, you have a mechanical injection pump, with a rebuild etc you can get over 300 ponies and 500 ft lbs of torque, 400/600 with a twin turbo model, and still get upper mid teens for mpg, try that with a gasser!
ps, truck in 298's photo attachment wieghs 7400 lbs as equiped! 6800 with out tool box and rack, empty with a half tank of fuel. Who said a diesel crew cab can't fly! or at least attempt to.