Rear End Length for 4-Link & 315/60/15's

Working on the details for the rear suspension on my Dart sport and need some advice on rear end length. Right now my plan is to go with mini tubs, Reilly's Street-Lynx 4-link suspension and a Dana 60 rear end with 315/60/15 tires. My question is will keeping the stock rear end length of 52.25" be okay or would it be better to shorten the Dana 60?

Thanks all!