Dana 60 rear swap

[66x3]

My first new thread and hope i'm posting in the right place if not feel free to yell at me! I just spent pretty much a full day cleaning up a 71 or 72 Dana 60 found a tag on the rear cover stating 3.54. I had done the rotating wheel driveshaft yoke and thought I got 4.10s.I had pretty much decided to keep the 4 speed in my 66 C20 but now thinking not a good combination with the stock 283. I do have everything to install a 700 R4. Are the 3.54 gears still too high? I sometimes haul my truck camper that weighs approx. 2000 # and use my truck as a truck some. Thanks for any help.