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Thread: gq TB42 petrol gearbox issue.

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    gq TB42 petrol gearbox issue.

    Hi guy's I have a 92 gq tb42 petrol swb and I have noticed that when i shift in to 2nd gear it seams like it dosent want to go into gear properly and i found that if i double clutch it seams to help. All the other gears seem ok.

    Not sure if its a common problem or if id need to checked?

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    Patrol God mudnut's Avatar
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    Welcome to the forum. If the gearbox oil is the wrong grade it will make the synchromesh stick, especially when it is cold. Early Nissan gearboxes need a GL4, not GL5 rated oil. I have had a GL 4 plus rated oil that was too sticky as well.

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    LMcasanova (25th July 2020)

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    Oh wow ok. Thanks for the heads up.

    I am not sure what type is in it atm so should I maybe change the gearbox oil and put in GL4 but not GL4plus?

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    Patrol God mudnut's Avatar
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    I would stick with GL4. I used Castrol but there should be other brands available.

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    LMcasanova (25th July 2020)

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    Yeah i think ill go with the Castrol aswell.

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