Nice upgrade for those of you with the factory 1200-1400 stall unit. This is a 30 spline unit that fits 85 & up 700r4 trannys. Stalls around 1650 and is a code "DE" . It is Rebuilt with very low miles. Came out of a 1990 TransAm with TPI and 3:23 gears, not that it matters. If you have an LG4 you have a low stall, others may as well. Check your "tag" on the face of your convertor. I can "convert" the code for you and tell you what you have. Selling mine for $85 shipped. Paypal prefered