circle d stall and vette servo NEW for 4l60e

Back up forsale again local buyer couldnt come up with the rest of the cash I also have it listed on Ebay here circle d 4l60e truck 2600-2800 chevy stall converter: eBay Motors (item 170492078869 end time May-30-10 17:17:52 PDT)

If you mention LS1truck I will ship for free !!

why only 03 and up?

I used a parts interchange book and thats what it said ? what years will it fit then ? I thought any 4l60e ?