In theory you could match up your ratios by changing tire sizes,but that's a real bag-o-snakes to get into. You can swap a set of 3.73 gears into the newer axle,but it won't be cheap. Best option would probably be to use a wrecking yard hotline and try to find the kind of axle you want with a ratio that matches your other axle.Or if you want to go for the 3.08 ratio,go for a donor truck and use both axles. If you go this route,don't forget to grab the speedometer gear too,if it's available.
Speed


1954 GMC 350
1957 GMC 1/2 ton
1962 Chevy C-30
1952 Chevy 6400 dump bed project truck
'98 Harley FLSTC
'66 Pontiac Catalina
'76 Chevy 1 ton Duallie
'84 Bronco II
'78 Dodge W-200
'81 Toyota 4X4 truck