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97 RK Transmission oil

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Old Mar 5, 2007 | 12:12 PM
  #1  
wingt50dw's Avatar
wingt50dw
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From: Tuscaloosa, AL
Default 97 RK Transmission oil

I just changed to a braided clutch cable and I was going to go ahead and change my tranny fluid. I have a 97 Road King and I was wondering what type of fluid to run in the tranny. From what I could find here on the forum, I think 75W 90 gear oil is the way to go. Does that need to be synthetic, or dino oil? Also, where on the dipstick indicates full, I only have a notch around my dipstick in one place. Above this, below this, or right at this mark? I have done several searches, but cannot find specific info. Thanks in advance for the help.

 
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Old Mar 5, 2007 | 02:33 PM
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From: Russellville, Arkansas
Default RE: 97 RK Transmission oil

75w90 gear lube or close to that and GL5 is just fine for it. It does not matter whether it is synthetic or regular. I personally have used 80w90 non-synthetic gear lube for thousands and thousands of miles on Harleys without any trouble whatsoever. I don't pay attention to the mileage on the transmission though...as I change it once a year anyways. It is always clean when I do change it as well.

Right off, I believe it takes almost one quart for the transmission and it is checked on the side stand. It should come to the mark on the dipstick.
 
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Old Mar 5, 2007 | 02:50 PM
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wingt50dw
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Default RE: 97 RK Transmission oil

Thanks...I wasn't sure about the sidestand, or not. I am glad you mentioned that. Not much help anymore for us Evo boys!
 
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Old Mar 9, 2007 | 01:53 PM
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Default RE: 97 RK Transmission oil

I use Bel-Ray. I've got a friend with 350,000 miles onhis 74 FLHPand he's used nothing but Bel-Ray in it and he's never had to open it up.
 
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Old Mar 9, 2007 | 02:07 PM
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fmbeach
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Default RE: 97 RK Transmission oil

I use Red-line shockproof heavy. I think it makes a difference. Quieter and smoother shifts.
 
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