Transmissions and Drivetrain Need help with your trans? Problems with your axle?

Change tranny fluid? 115K miles

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Old Aug 20, 2006 | 12:58 AM
  #1  
rik89gta's Avatar
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Joined: Apr 2003
Posts: 580
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From: CHICAGO
Car: 89 FORMULA 350
Engine: 5.7 L98
Transmission: 700R4
Axle/Gears: 9 BOLT/ 3.27 GEARS
Change tranny fluid? 115K miles

I was just wondering if it should be safe to change my tranny fluid in my 700R? The fluid seems to be getting a little dark and the pan gasket is leaking a little bit anyways. There is nothing noticeably wrong and it shifts nice and firm. But I've heard and read bad things about changing the fluid in higher mileage trannys. Any opinions?
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Old Aug 20, 2006 | 01:25 AM
  #2  
Randy82WS7's Avatar
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Joined: Mar 2002
Posts: 4,812
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From: 62656
Car: 1991 S10 pickup 2700lbs
Engine: 4.3L Z TBI
Transmission: 700R4
Axle/Gears: 3.08 7.625"
weell anything is better than the tired worn out junk fluid thatts in it now

if oy uleave it it will die for sure

i think you have a better chance with changing it than leaving it

if the fluid doesnt smell burnt at all then i wouldnt worry, also if the cable is set correctly

when you get the pan dropped carefully hunt for any metal flakes in the pan or chunks of black material, if you find any then worry

good luck
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Old Aug 20, 2006 | 01:33 AM
  #3  
rik89gta's Avatar
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Joined: Apr 2003
Posts: 580
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From: CHICAGO
Car: 89 FORMULA 350
Engine: 5.7 L98
Transmission: 700R4
Axle/Gears: 9 BOLT/ 3.27 GEARS
Thanks for replying, But do You think it would be a good idea to install a larger pan that holds 2 extra quarts of fluid to keep things cooler? I found one in the Year One catalog for only $28. it has been 100+ degrees everyday where I live.
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Old Aug 20, 2006 | 08:45 AM
  #4  
Berlyn0963's Avatar
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Joined: Jan 2002
Posts: 257
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From: Laurel MD 20707
Car: 91 Camaro RS
Engine: GM PP crate 350
Transmission: 700r4
Axle/Gears: 3:42 spooled 10 bolt
i'd get the new pan as long as it doesnt affect ground clearance
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