Setting rearend backlash

[thelinja]

How important is setting the backlash on the rearend gears when you change the diff? This will be for my stock rear diff assembly, pinion, and ring gear on a helical diff. We have the tools here at school to set the backlash, I've just read it's very difficult and time consuming and I plan on swapping the differential myself. Thanks.

Jason

[Halz]

When its something on the magnitude of tolerances from .0039 to .0059in, that should be a good indicator of how important it is.

[thelinja]

Thanks Halz. I was just curious because I see a consistant number of threads about swapping differentials, and not one thread concerning setting the backlash. Thanks again.

[Mikes14240sx]

Its something you want to have correct. Out of spec backlash could cause anything from excessive noise to premature gear failure. Google search differential backlash. I found some pretty good info sites when i was doing my kaaz swap.