Forward fitted with smoother F transmission (it says model 1999)

1999 ISUZU TRUCK
428,000 MILES
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FIREFIGHTER_MARV
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How does a periodic maintenance work done in the smoother F transmission (automated manual transmission)? the transmission fitted in my truck was I think the first generation Isuzu smoother F transmission as the gear shift lever is the usual manual gear shift lever (1-2-3-4-5-6-R). It is not the new lever with (P-D-R +/-).
I cannot find any automatic transmission fluid reservoir. How can I perform periodic maintenance checks on my truck?
Sep 6, 2013 at 6:52 AM
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JACOBANDNICKOLAS
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Are you saying there is no way to check the transmission fluid? If there is no dip stick, there has to be a bolt on the side of the transmission where it is checked and filled from.
Sep 6, 2013 at 10:49 PM
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FIREFIGHTER_MARV
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Okay, I will check on it. Also, if I want to drain and replace the differential fluid/oil what type of fluid/oil should I use? Shall I use ATF?
Sep 7, 2013 at 7:30 AM
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JACOBANDNICKOLAS
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Check your owner's manual to be sure, but will be a type of gear lube like GL5. The differential does not take ATF.
Sep 7, 2013 at 5:52 PM