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Old 09-11-2023, 08:10 PM   #5
hatzie
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Join Date: Oct 2008
Location: Wentworth, NH
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Re: DOT 4 fluid for clutch- why?

Quote:
Originally Posted by 95 S_Trucker View Post
The service manual calls for GM# 88958860

That is DOT 4 fluid. Nobody switched the cap.
I've never had a T800 with a manual transmission.
Not sure what the reasoning was to do that. The clutch on my T400 used DOT3.

As I said. I run DOT4 in everything with brake fluid in it.
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1967 Dodge W200 B383, NP420/NP201 SOLD
1969 Dodge Polara 500 B383, A833 SOLD
1972 Ford F250 FE390, NP435/NP205 SOLD
1976 Chevy K20, 6.5L, NV4500/NP208 SOLD
1986 M1008 CUCV SOLD
2000 GMC C2500, TD6.5L, NV4500
2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263
2009 Impala SS LS4 V8


RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...Please include at least the year and model in your threads. It'll be easier to answer your questions.
And please let us know if and how your repairs were successful.
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