where to buy a rear end gear 3.73 or 4.10

[SuperSlowLT1]

where have you guys ordered your gears from. im looking toward 3.73 or 4.10 i have a stock rear end from factory rite now its the torsen i think with 3.23 in it maybe ? and what do i need to know about my rear end when ordering????

[LOW MILE SS]

I have a 3.73 complete gear kit from thunder racing NIB that has everything including strange gear, install kit, fluid and lim slip add. w/alum girdle. if your still looking i have listed on craigslist. iI believe you need to know youre existing ratio to make sure gears will fit your carrier. I 'm going 9 inch. i haven't made enough posts to list it here yet.Let me know if your still looking.