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868 Posts
I just changed the trans fluid and filter in my 86, and it was way past due. I used Sixlitres write up and it help alot. The fluid came out and was pretty burned up along with a good amount of sludge in the deep portion of the pan. I put in the new stuff along with some Lucas trans additive and everything works great, shifts better, etc. The only thing I wish I did differently would be put in a drain plug for next time.