I am stuck on getting a T5Z or Tremec TKO500. It would be nice to have the extra 200 ft/lb torque handing of the TKO (in case I ever got crazy down the road), but at about ~$600 less, the 330 ft/lb T5Z looks mighty appealing. Anybody using a T5Z and wish they got a Tremec TKO500 (or vice versa)? Also, who has the best deal on trannies (new or used, doesn’t matter as long as the warranty and support are there). I found this site that gives a two year from purchase and six month from install warranty, which is good since I am still gathering parts for my AOD to manual tranny swap in my 88 LX 5.0. Thanks!
http://www.keislerauto.com/gm/transmissions/builder2.asp
http://www.keislerauto.com/gm/transmissions/builder2.asp