Re: 6 speed suddenly rough shifting
I'm not a transmission expert, at all. But I have found the 6 speeds love to have clean fluid. We've had several and they start to get jerky/rough after about 40k. You're past that point anyway, can't hurt to do a fluid service.
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'20 Silverado Trail Boss ~ '17 Tahoe ~ '79 K15 Sierra Grande ~ '76 Blazer 2wd ~ '71 Cheyenne swb ~ '55 Pontiac Safari ~'50 3100 bagged ~ '80 Wife ~ Late model kids
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