727 Whine

Engine, transmission, rear-end, driveline, fuel system etc..
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Bad1cuda
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727 Whine

Post by Bad1cuda »

1971 D100, 318, 727, all stock.

I have a whine coming from my transmission. When I am driving, I will get up to around 45mph. After about a minute I get a loud whine. It starts quiet and gets loud fast. It goes away when letting off the gas. Starts instantly when you get back on the gas. I have replaced the fluid and filter. Fluid level is correct. It shifts fine. I just bought this truck "running and driving" last fall. I am not sure how long it was doing this before I bought it. Thanks in advance for any advice on this.

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MadMC63
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Re: 727 Whine

Post by MadMC63 »

Its more than likely the rear end not the trans.
1971 Dodge D100
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Txas2step
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Re: 727 Whine

Post by Txas2step »

Bad or restricted pump. :thinking
61 shorty 170/ 3spd 3:91(sold)
66 lwb 318 poly/727/4:10 (sold)
67 shorty 318poly/4spd 3:55
68 ute 318/3 spd/3:55(sold)
70 318/727/3:23
66 d200 225/4spd/4:10( military)(sold)
68 d100 383/727/3:55

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marklein
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Re: 727 Whine

Post by marklein »

Possibly converter, but your description would lead me to diff first.

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Jims68
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Re: 727 Whine

Post by Jims68 »

Try a little Cheese with your "whine".... :lol: I'm sorry... I couln't resist. Just kidding! :salut Good luck with the problem.
Jim

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Jim100
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Re: 727 Whine

Post by Jim100 »

As others have said check out pinion bearing. Mine would do that on and off load until it did it all the time and then locked up on the highway.
jim

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