Stickshift guys, dshaft and rear for 69 Torino

[rustang]

I just got this old girl on the road this year, and already had my first rearend blow up lol. It was a stock 1971 torino housing and 28 spine axles. The one axle twisted the splines but I think it was the cheap aftermarket diff that scattered first and took the axle shaft with it. (Additionally the 9" housing spring pads were all bent and welds broken...but I think the rear had been like that from before...which explained why the pinion angle was funky!).


Regardless I don't want to relive that any more. Car is a full weight 1969 torino fastback. It's a 351C 4V/toploader, should eventually be a low 12 car and around 400-ish hp. The plan for next season is to go with a shortened truck housing, N case, Detroit locker, 31 spline axles, Daytona support. One thing I'm wondering about is the driveshaft. Will 1330's be reliable with this combination or should I go with 1350's? 1330 seems to be a lot more common. And if I go to 1350 who makes an output yoke that is 1350/toploader? Will a C6 yoke work?