When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
That's not an E4OD, it is a 4R100. It will bolt up and work in a '97, but there could be problems.
If it is an early '99 it will work fine. If it is a later '99 then it's going to have very harsh torque converter lockup. You'd need to change the solenoid body and the pump to get it to work correctly.
I think I'll go look at it, record the numbers, and post them here. Then perhaps with help from the GroupMind, we can figure out if it'll fit.
I would say that is a hell of a deal and grab it on normal principles...worst case you could start parting the engine out and recover probably double the cost.
I'd be shocked if it weren't long gone. $500 price + posted a month ago + "need gone" == he sold it quick, and doesn't give a rat's about deleting the ad.