C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

[4+3]: Fluids one last time.

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Old Jul 4, 2002 | 11:14 PM
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Default [4+3]: Fluids one last time.

Ok I have to R&R my tranny again this weekend. I will have Mobil 1 Synth in the OD unit, but am still undecided as of what to go with on the 4-speed.
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Old Jul 4, 2002 | 11:46 PM
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Default Re: [4+3]: Fluids one last time. (scorp508)

redline :D
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Old Jul 4, 2002 | 11:49 PM
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redline :D
If this were a "normal" tranny I would, but I have to be careful. One of the biggest problems with the 4+3 is if the 4-speed's fluids get through the seals on the overdrive unit. If this happens, it cooks the overdrive.
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Old Jul 5, 2002 | 12:21 AM
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Default Re: (scorp508)

i saw this on redline.com..
http://www.redlineoil.com/frames/ms-autox.htm

mayby ShockProofTM Gear Oil can be something?
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Old Jul 5, 2002 | 12:36 AM
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Default Re: [4+3]: Fluids one last time. (scorp508)

What did you put in it when you replaced it?

Redline Synth 75w90 recommends not using it in manual transmissions as the extreme slippliness may cause gear clashing.

I've got Mobil 1 Synth 75w90 in the T-10, Mobil 1 Synth in the OD unit and Redline Synth 75w90 is the Dana 44.
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Old Jul 5, 2002 | 12:51 AM
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Default Re: [4+3]: Fluids one last time. (96LT1)

I've seen testimony from racers with the D4 ATF fluid in their manual trans. I don't know enough to recommend.

Probably the guys at RL tech support would try to know their product well enough to not screw you up if you call and ask...

What recommendation gets the Mobil 1 in the OD unit? Is that just factory spec? Just wondering, I'm always learning...
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Old Jul 5, 2002 | 12:55 AM
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What recommendation gets the Mobil 1 in the OD unit? Is that just factory spec? Just wondering, I'm always learning...
I was told by one of the guys that used to rebuild that at http://www.gearzone.net that they recommended it. When I switched over to it I did notice much better shifting.
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Old Jul 5, 2002 | 01:15 AM
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Default Re: (scorp508)

I ran 5w30 in my 87 daytona, tranny was great after 150K miles but they also said to run 5/30.
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Old Jul 5, 2002 | 05:27 AM
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Default Re: (hippy)

scorp: try the redline D4 synthetic ATF in the overdrive.
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Old Jul 5, 2002 | 08:38 AM
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Default Re: [4+3]: Fluids one last time. (scorp508)

I asked the same question last week on the forum and got only one response :( , so I posted over at Gearzone. They told me to run Mobil 1 gearlube in the manual, and had previously answered both you and I to go ahead and use Mobil 1 ATF in the O/D. Hope they're right, I changed the fluids out 2 days ago!
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