I posted a littlewhile ago about a leak from the front of my 700R4. My first thought was the pump seal, but after looking closely at the converter while it was under the truck i saw that there wasn't even a drop of oil on the lip of the seal that you can barely see, but there was still fluid coming down the back of the convertor. anyway, i took it to the local trans shop to see what they thought and they said that the hub on the convertor can sometimes crack at the weld causing a leak etc... i have also had some other problems lately with the transmission seeming to drop out of overdrive when cruising. and today something new happened. when the light turned green at a stop light i went to accelerate and nothing happened for a second, then it clunked into action and spun the tires. i wasn't gunning it or anything.?!? the three others gears seem to be working fine. after test driving the truck with the trans guy he said he 'felt' like something was starting to happen with the overdrive. so, knowing that i have to take the transmission down anyway to replace the piece of crap Advance Auto convertor, i was wondering about the price the trans shop guy gave me for a rebuild. if i bring the transmission to them he quoted around $700. my question is, is it better to let them do this rebuild and replace any bad parts in this otherwise working transmission, or should i just look around for a replacement that i could get for half as much? or, could all these other problems be stemming from this bad convertor? any input is greatly appreciated.