Exchange of differentials

Hello, I have some doubts with respect to the differentials, I would like to know what the precautions are to exchange differentials between one vehicle and another, I refer to the speed of the engine, vehicle speed, torque engine to be transmitted, these factors are default to exchange differentials?, Or is it just necessary to play with the attack niophon to change the distance of it with respect to the crown.

I hope you can help me, thanks

Well, what I can tell you is that changing the differential (piñon and crown) affects the engine in the following; If you have an engine that is elastic (long piston race and little crossing tree = torque to a few rpm) with a shorter relationship differential, it will move well and accelerate well, but it was 3000 rpm: more consumption and unnecessary wear). If on the contrary you have a more sporty engine and change the differential that lengthens its marches will go on the contrary, it will take longer to reach its Max par. (They usually have it from 4000 rpm) will have no strength in casualt Only in some cases are interesting to shorten development and never lengthen, or change differential or through larger diameter tires.
Through the lainas, no distances or shortes, you only adjust the bearings and the game between pinions (if this is not done well, they are destroyed). It also has the opinion of others (because this is just my opinion) Greetings !!