700R4 ??\'s OK on my '86 Im about to attempt to rebuild the 700R4 myself but wanted to see if anyone knew what the problem was before I started on it. The guy I bought the truck from said that he was going down the road and all of a sudden it felt as if he threw the shifter into neutral so he pulled over to see if he had spit any parts all over the road and everything looked fine. So he pulled away and it did fine untill it hit 3rd then nothing, and it is still that way. I was thinking that the 3-4 gear clutches are toast but just wanted to see if anyone else had this problem and found the reason behind it. Also the rebuild kit I plan on getting is this one........... http://www.kdsperformance.com/hoscomkitwke.html along with the manual and video. Is there anything else anyone can think of other than a new converter that I would need to have a quality tranny? I was also shown this place today and it looks like a pretty good deal on a hopped up 700R4 but I just really wasnt wanting to dump that kind of cash right now, hence why I am wanting to do the rebuild myself. http://www.fearthemonster.com/transmissions/megamonster/heavyduty/700r4/ Anyway any ideas or comments would be appreciated. O yeah Im also thinking about ditching the auto all together and doing a sm465 swap but I dont know if it would be worth it.