ratio's

hi guys - its probably a dumb question but are defender axles all the same gearing - im just starting a re / build . - 300 engine - new galv chassis -already sat on axle stands in garage , im looking to buy some decent axles - question is - can i mix em up , disco front , salsbury back etc or what combo would you recomend - build is 300 engine 380 box 110" hi cap.
thanks for your help
dave p

they are all 3.54 ratio crown wheel and pinions whether disco or defender or rrc, rover or salisbury type ,so any ,some special defenders had 4.7 but they are rare

Many thanks for the reply , on with the build !