installing used gears

[murdered out manche]

ok so im getting ready to order my install kit for my upcoming gear swap and would just like some input from sis. i have a hp30 with 3.07s and i just pulled a 4.10 gearset and carrier out of a junkyard 4 banger, both the carrier and pinion bearings and races are in good shape, no scoring or excessive play.
so ive decided to just go with a minor install kit. i have a friend with experience in gearing that is going to come and help me. im just wondering if there is any set backs to using used gears in a different housing? ive heard i will end up with a lil gear whine due to the gears already being broken in..
also if there is anything bad with using the nitro install kit as opposed to yukons minor install kit? its cheaper and is more complete.

thanks


http://www.justdifferentials.com/ind...oducts_id=3291

http://www.ringpinion.com/ProductDet...px?ProdID=3042

[WAD357]

I'm planing to do the same and would appreciate input as well... I was thinking of reusing the shims from the 30 the 4:10s came from in my 30 and see where it sits from there...