Max tire size 69 swinger

My 69 swinger , 340 , 4spd , currently has Radial Ta 20570R14 tires . I want to change to redline tires . I know I can use 21570R14 tires on the stock 5.5” rim . This will have no clearance issues . What is the largest tire I can fit in the stock well . 22560R14 would be nice . I have seen them on 70 swingers . Perhaps the well is larger than the 69 ?
Feedback would be appreciated.
Mopar or no car
Thanks !