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Thread: Transmission advice for Rocky with Toyota 2L

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    Default Transmission advice for Rocky with Toyota 2L

    Hello there Brothers

    As the topic says, I intend to replace the gearbox of my rocky. It has a Toyota 2L engine with a Rocky 5 speed manual gearbox with transfer, dont know which model.

    I changed it a couple of years ago, it originally had a 4 speed manual with transfer. After the modification, it developed this weird vibration+noise in only the fifth gear, even at the same speed of, say, the 4th gear.

    Secondly, the ratios are tight and I am using it almost exclusively within city. 120 kph on the motorway and the engine screams.

    So I am looking for a gearbox which can give me a decent run within the city and should be alright even on the motorway at 110/120 kph.

    Kindly advice on both with and without the 4wd options. If anyone can quote the price and availability, that would be awesome.

    Thanks

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    Default

    You can probably look into slightly simpler solutions (1) changing gear set of ring-pinions to a taller/longer ratio (2) changing gear set (garraris) in the gear box with longer/taller set....

    The Rocky machinery has a bit of variation over the years and you should be clear on what ratios you are currently running as there is probably either a longer/taller ring-pinion and/or garraris sets available....

    All the best!
    "If YOU don't believe in what you're doing it'll never work."

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    Default

    Hmm, well I could look into that but I think the gearbox has some mechanical issues as well especially in the 5th gear with that weird noise.

    Can you recommend me a good mechanic in Lahore for this?

    And which gearbox do you recommend (both with and without 4wd, manual 5-speed) if I go for a swap?

    Thanks alot

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    Default

    Hmm, well I could look into that but I think the gearbox has some mechanical issues as well especially in the 5th gear with that weird noise.

    Can you recommend me a good mechanic in Lahore for this?

    And which gearbox do you recommend (both with and without 4wd, manual 5-speed) if I go for a swap?

    Thanks alot

  5. #5
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    Default

    This gearbox develops vibration and noise over time and there is no fix for it as such. Suhaib is right, play with it to get desired ratios.
    Keep a cool head and wear seatbelts!

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    Default

    You should stick to Rocky gearbox to avoid modifications, try to find one with longer gears otherwise change diff ratios too by swapping ring/pinion set...
    "If YOU don't believe in what you're doing it'll never work."

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    Default

    you can put in an auto gearbox of prado, that will be better for cruising on the motorway but it will drink more fuel
    no comments

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    change your diff ratio, put a higher set and you will feel the difference on motorway.

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    what do you mean by higher ratio... i m also having a rocky .. firstly 4 forward gear box.. now with its original 5 forward gear box.. with 2L turbo.. having 11/37 differentials ... which differentials have the higher ratio.. 11/37... 10/37.. or 9/37..

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