trans oil

so I hear 2nd gear grind a little bit at around 18oo rpms. I checked the trans oil and it was like water. truck has around 260 on it. What gear oil, do you guys like? and is there anything else I should do while I'm in there? thanks!

 

Any fresh gear oil will do the trick. That old of a Trans, you may wanna stay away from synthetic. While you're under there, drain n fill the diffs and transfer case. Make sure to use friction modifier in the rear diff if it is an LSD, won't hurt to put it in if it isn't, but will hurt if you don't and it is. Also grease the U joints til new grease oozes out of all the cap ends as well as the slip yoke on the driveshaft. Other things like bleeding/flushing the brake fluid, bleeding/flushing the power steering, flushing the coolant system, clean and lube the rear drum brakes, and of course engine oil, air filter, spark plugs, clean the MAF sensor and throttle body. Replace belts and hoses. I could really go on for days, but it depends on what you are capable of doing and what needs to be done

 

For you guys with the w59 transmission , look here http://web.archive.org/web/201011270...searchable.pdf

Noisy bearings in W59 http://www.tacomaworld.com/forum/1st...ml#post9323268