I'm still worried about breaking my tranny it was just rebuilt to handle 450 hp with a 2500 stall and a Gear vendor over drive. The rear end is 8 3/4 possi with Richmond ring and pinion and 4:10 gears.
I'm worried about all that torque 500 is a lot.
Don’t worry about it, that driveline is fine for much more. Unless you are dead hooking a very big slick with a stick shift maybe, but with that power level you’re not even close to hurting a well build 727 With a cooler