4.88 gears

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Thread: 4.88 gears

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    Veteran Member JasonF1234's Avatar
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    Default 4.88 gears

    This was a hard mod to do for me. If you dont have experience with rear ends let some else do it. The bearing on the pinion gear was pain to get off. But the mod I think is worth the time and effert. I still have to break them in but all I can say is very nice! The rpm are about 300 higher at 60 that the stock 4.30's.
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    Default Re: 4.88 gears

    The first time can indeed be difficult, especially if some of the tools you are using are not quite ideal. Just like most jobs, experience pays... now you've done one, you know the pitfalls, what tools would make it easier, etc.

    That thing must be laying down some serious torque to the wheels... enjoy!
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    Default Re: 4.88 gears

    Is this mod good for towing? what is the added benefit of 4.88 gears.. Just Curious

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    Default Re: 4.88 gears

    Keep us posted on towing gas milage.
    Charlie & Linda



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    Default Re: 4.88 gears

    These new gears are good for towing, racing, and off road.

    07 5.7 Metallic Slate DC / 15" custom lift
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    Default Re: 4.88 gears

    Mine are ordered but not here yet. Should reduce a lot of the downshifting due to our pathetic overdrives.
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    AIP Solution: Disconnect both air pumps. You will get a CEL ( Codes P0418,P0419)but no limp mode and no affect on performance. AIP system will be shut down preventing valves from opening. There are two pump connectors, one behind the coolant reservoir on the front of the engine and one below the air box along the wheel well. Both are large gray connectors. Disconnect them, tape them up, zip tie them to keep them from getting into anything hot or moving and your done. If you need service done, reconnect them before you take the truck to the dealer. Enjoy.

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    Default Re: 4.88 gears

    So far the gas mileage dropped about a half a mile per gallon but thats not towing anything.
    Black Widow

    2/4 Mcgraughy's spindle drop
    Front grill, LED in rims
    LED taillight,LED 3rd Brakelight
    LED's Interior lights,22" Incubus rims
    LED Brakelights, TRD swaybar
    TRD Supercharger, TRD intake
    Priana Body Kit,VIS racing hood
    Doug thorley Long tube headers
    EBC Brakes and Rotors
    Custom 2 1/2 exhaust

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    Default Re: 4.88 gears

    Quote Originally Posted by JasonF1234 View Post
    So far the gas mileage dropped about a half a mile per gallon but thats not towing anything.
    Not bad at all. Keep us posted.
    "No bastard ever won a war by dying for his country. He won it by making the other poor dumb bastard die for his country"

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    Default Re: 4.88 gears

    I saw you going down Airline hwy. today through the intersection at Highland road.
    2010 Slate Metallic CrewMax, 4x4, SR5, TRD, 2.5 inch leveling kit.

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    Default Re: 4.88 gears

    Do you have to change gears in front and back diffs? Where did you buy them good price?? I want to do this mod soon is it that hard to do yourself?
    Gibson Dual Exhaust
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    Default Re: 4.88 gears

    i sure hope these things are broken in by nov i want to see what this beast runs in the quater now. what are hoping for?
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    Quote Originally Posted by oofy15354 View Post
    she got mad when i came home and sat in the truck before going inside to see her... i guess the tundra just requires less money and maintenance.....
    Quote Originally Posted by tundrunk View Post
    The sad part is, when I googled "blowmaster" images a picture of my truck comes up, fail.

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    Default Re: 4.88 gears

    OoOoO Yeh! Much more brave than me. I will not touch Diff's and tran's.. you prob should kick my arse in the 1/4 now. I wouldn't be surprised if it drop's your ET by at least .3


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    Default Re: 4.88 gears

    Quote Originally Posted by notdrunk View Post
    OoOoO Yeh! Much more brave than me. I will not touch Diff's and tran's.. you prob should kick my arse in the 1/4 now. I wouldn't be surprised if it drop's your ET by at least .3
    thats guna put him in the 12s thats just scary
    07 Tundra Limited DC 5.7 TRD Off Road
    All interior leds, led reverse lights, black headlight mod, custom homemade led third brake light, morimoto mini H1 projector retrofit with 5000k hids, 6000k 55w hid fogs, debadged, 2010 sport color matching grill, 2 sundown sd 10s in a fox under seat box, afe stage 2 cold air intake, super 44 flowmasters dumped after rear axel, tundra racing rear flip leveling kit, 22" black rhino traverse, tundra racing helper bag kit (made to fit their level kits)...

    Seafoam how to
    http://www.tundrasolutions.com/forum...eafoam-how-to/

    Quote Originally Posted by oofy15354 View Post
    she got mad when i came home and sat in the truck before going inside to see her... i guess the tundra just requires less money and maintenance.....
    Quote Originally Posted by tundrunk View Post
    The sad part is, when I googled "blowmaster" images a picture of my truck comes up, fail.

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    Default Re: 4.88 gears

    Quote Originally Posted by TinyTundra View Post
    Do you have to change gears in front and back diffs?
    If you have a 4X4 then you will need to do both front and rear

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    Default Re: 4.88 gears

    Quote Originally Posted by TinyTundra View Post
    Do you have to change gears in front and back diffs? Where did you buy them good price?? I want to do this mod soon is it that hard to do yourself?
    If you haven't done a rear diff before I would advise to get some professional help. If you have then by all means go for it, but it's alot of work but not impossible. I got mine from JUST Differentials, there on this website at the bottom. And I would think you would have to change both if you have a front and a rear.

    Re: 4.88 gears
    I saw you going down Airline hwy. today through the intersection at Highland road

    Yea that was me. I was going to the guy's house that helped me. I left my ring and pinion gears so I had to go get them.
    Last edited by JasonF1234; 09-19-2011 at 06:17 PM.
    Black Widow

    2/4 Mcgraughy's spindle drop
    Front grill, LED in rims
    LED taillight,LED 3rd Brakelight
    LED's Interior lights,22" Incubus rims
    LED Brakelights, TRD swaybar
    TRD Supercharger, TRD intake
    Priana Body Kit,VIS racing hood
    Doug thorley Long tube headers
    EBC Brakes and Rotors
    Custom 2 1/2 exhaust

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