what size transmission is this


Asked by Aug 04, 2013 at 10:33 PM about the 1999 Ford Mustang

Question type: Maintenance & Repair

1999 MUSTANG 3.8 V6  i found the tag on my atomatic transmission. it has PKE-AJ1   XR3P-7000-AA   56978  9J  on the out side of bell houseing 78S is stamped on it and the tail shaft houseing RF-F3LP-7A040-AA Basic 6  46  W   and behind the shifter cable bracket on the side of the transmission  it has RF-F7SP-7006-AA    what size or kind of transmission is this and what can it be swaped with

1 Answer


PKE-AJ1 is a 4 spd, RWD, (V6 3.8L V8 4.6L) "4R70W" transmission. A revised version of the AODE released in 1993 with it has lower 1st and 2nd gear ratios for better take-off acceleration. The gear ratios are: 1st: 2.84 :1 2nd: 1.55 :1 3rd: 1.00 :1 4th: 0.70 :1 Rev: 2.23 :1 . "X" is a designation for the automatic transmission design. Think of it in a generalization "7000" is the "whole" part number for the trans with AA as the revision number, "7A040" is the base part number for the tail shaft housing and "7006" is the base part number for the trans case. If you needed a new transmission you would order "XR3P-7000-AA to get the entire transmission. Contact "Tracy" here on this forum, he has stated he has much experience with newer Ford products and he might know where to send you to get the exact break down of the entire "tag".

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