if the trans is slipping like and you've been driving it that way for the last 2+ years like you said, it is definitely going to need to be rebuilt. i can guarantee at this point at the very least your clutches and steels are going to need to be replaced. you will also probably find a few other things wrong once it is torn apart too.

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91 ranger std cab 2wd 2.3L (my latest project)
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