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Originally Posted by prpmmp
What trans fluid are you using? I had a NWC T5 that had ATF in it,switched to 20-50 Mobil One and it was a lot quieter. Pete
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Quote:
Originally Posted by JSeery
Think you can do that on a NWC, but not a WC.
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I DO NOT recommend anyone use engine oil in a T5. It doesn't have the correct additives for use in a transmission. There are special shear additives that are absent in motor oil. While folks have done it and gotten away with it, it is more because these old hot rods and Fords don't see near the mileage of daily drivers.
I run synthetic ATF in all T5 - WC & NWC. I find the GM synchromesh too thick and the gear oil originally called for in early T5 to be WAY too thick (the old Ford oil translates to a 70W gear oil). It doesn't hurt anything, but it makes them sluggish to shift, especially when cold.
Quote:
Originally Posted by Roger/Sacramento
I have an Old World out of an S10 pickup. Had the tranny opened up and cleaned and checked by a shop. Installed the tranny and it worked fine but, made a whining noise in 3,4,5 gears. Talked with the shop and they said they never checked the bearings because they have to be broken down to check. Took the tranny out and had the shop replace the bearings. The originals were only slightly worn. After reinstallation the noise is still there. What experience has others had ?
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I suspect end play. End play is the easiest adjustment one can do on a T5, although you need to pull the top & tail off to do it. I set mine to the tighter end of the tolerance.
Is your whine less in 4th at all? Generally, 4th has the least noise of any gear, but if it's noticeably & significantly quieter than the other gears, it is indicative of a bad input bearing...although too much end play can be almost as bad. If you have way too much end play, that will result in worn/broken synchros and dogs on the gears.