tranny slips 2-3

[IRA51]

if they did not drop the pan and change the filter than you got strocked . just sucking out the old fluid and not cleaning out the gunk on the bottom of the pan and changeing the filter is like takeing a shower and putting you same old underwear back on . also if they did not do it properly (suck out the old fluid ) you can get a front seal leak . I change my fluid and filter every 25000 miles and have installed a heavy duty trans cooler and bypassed the trans cooler in the radiator . glad your trans is working ,but you may want to get a better trans cooler and change the filter and clean the inside of the pan . the additive I have had the best luck with is Smart blend SUV it is a friction modifyer .