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6-speed update

1064 Views 4 Replies 5 Participants Last post by  SoftailBilly
Can I eliminate noisy 6-speed in my 2009 nitetrain by updating gears to later gears, shafts?
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Have you tried running different tranny oil???

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Have you tried running different tranny oil???

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+ 1

The pepto stuff from Redline really is quieter.

that said, the noise is just noise. If the transmission shifts fine, why does it matter?
6-speed in 2009 has straight cut gears in 1st and 4th. changing them to a helical in 4th from a straight cut isn't cost effective. Run a hypoid gear lube in trans of 75-140 or BellRay 85-140 that I run now thanks to Wingnut......
Have a friend who says 6-speeds tend to fail around 30K plus. Told him to go smoke some Belray and get back to me.
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