What rear end and where do I buy?

[dc3843]

Hello all, Im new to the forum, just started my build. Right now, I'm looking for a posi rear end and im not sure where to go or what to buy so looking for some help. We're doing a ls1 motor, 6l80e transmission. I ordered a full ride tech coil over suspension and I'm looking at doing a big brake kit. Haven't ordered the brake kit yet cause I wanted to get the rear end sorted. We're also converting to a 5 lug pattern. So what rear end do I go with and where do I order it from? Thanks!