Is it possible to change Blender's dimension decimeals from 64 to 32 bits?

I’m having a small problem with Second Life game engine. Basically I broke up a large mesh object into smaller pieces by using Blender’s Separate function. But after imported Collada into Second Life, the tangent edges are showing tiny gap between the edges. They say that’s because Blender uses 64 bit decimals for position and dimension while Second Life game engine uses 32 bits.

So is it possible to switch Blender’s 64 bits decimals to 32 bits?