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arb Lockers and vsc/limited slip, etc

Discussion in 'Technical Chat' started by mandg401, Apr 14, 2011.

  1. Apr 15, 2011 at 9:38 AM
    #21
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    As to weather or not the Off Road has more ability, Most of that depends on teh driver. Many people on here that have run back to back, have had no complaints about the Sport. I have yet to see someone on here complain that they should have gotten the Off Road......If they have, I missed the post.
     
  2. Apr 15, 2011 at 9:44 AM
    #22
    Dark Knight

    Dark Knight Well-Known Member

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    Love my sport. My mechanical LSD + Ebrake is my poor mans locking diff. I also think I'm an ok driver with enough skill to put my Sport in and out of a lot of places a Tard with an offroad would get stuck. Rant over. I'm done.
     
  3. Apr 15, 2011 at 9:49 AM
    #23
    OZ-T

    OZ-T Thats what it is to be a slave ...

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    same shit different thread
     
  4. Apr 15, 2011 at 9:54 AM
    #24
    kmok

    kmok Plastidipped ma Hootus!

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    Well, it doesn't have an offroad hood so it will not perform as well as the offroad and it obviously doesn't have ATRAC :p
     
  5. Apr 15, 2011 at 10:00 AM
    #25
    cameronlane

    cameronlane Well-Known Member

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    ....or they dont get wheeled the same....

    and fake hood scoops are stupid. end of story. its kinda like putting those air vent stickers on the side of your car.

    Round Chrome Ports 2.jpg
     
  6. Apr 15, 2011 at 10:06 AM
    #26
    kmok

    kmok Plastidipped ma Hootus!

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    Tape on hood scoops and other autozone accessories are stupid. The TRD Sport hood scoops are fine and make the truck look better imo. No need to bash the TRD Sports.
     
  7. Apr 15, 2011 at 10:16 AM
    #27
    cameronlane

    cameronlane Well-Known Member

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    look at all the butthurt. if you know how to drive it isnt a ticking time bomb. it is a tool to use as a last resort. see the pic in my sig if you think i have no idea what i am talking about. or come out to do the rubicon, fordyce etc and we'll go have a blast.. ill help pull you out.
     
  8. Apr 15, 2011 at 10:22 AM
    #28
    kmok

    kmok Plastidipped ma Hootus!

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    What do you mean by that?

    This TRD Offroad vs. TRD Sport fight is stupid. They're both great trucks, both very capable offroad but with different options...
     
  9. Apr 15, 2011 at 10:28 AM
    #29
    kmok

    kmok Plastidipped ma Hootus!

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    I know they are not as stout as the "8.4" non TRD offroad rear end but they still can take abuse.
     
  10. Apr 15, 2011 at 10:34 AM
    #30
    kmok

    kmok Plastidipped ma Hootus!

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    Is this the same with the 1st gens? From what I've heard the 1st gen elocker rear ends are not that bad, still not as good as the "8.4" non elocker rear end.
     
  11. Apr 15, 2011 at 11:15 AM
    #31
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Same manufacture from what I can find.
     
  12. Apr 15, 2011 at 11:22 AM
    #32
    BlueT

    BlueT Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    1gen is atleast 1000 lb less
    1gen = 4.10
    2gen = 3.73

    8" 4.10 is thicker then 8" 3.73 (not by much but apparently enough )
    So 4.10 + 1000lb less = elocker FTMW :)
    3.73 + 1000lb more = elocker sukz :mad:

    8.4" rulez them all :D (well until you dump Tundra 10.5 in that thing I guess )
     
  13. Apr 15, 2011 at 11:29 AM
    #33
    Brunes

    Brunes abides. Moderator

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    I would argue your "I can keep up with fully locked trucks" argument is bunk. You've spent so much time on here tellin everyone how your OR has better equipment than a sport and is therefor better. So with a fully locked truck it's better equipment than your OR....which means the fully locked guys were taking it easy or equipment doesn't really make all the difference.

    And it's funny- cause I've been out with guys that have lockers and all sorts of hoopla...and I've pulled some of those dudes out....which again tells me...Equipment isn't everything.
     
  14. Apr 15, 2011 at 11:46 AM
    #34
    cameronlane

    cameronlane Well-Known Member

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    I would totally agree. But if you put the same driver in a fully locked vehicle vs open, the locked is going to be far more capable.
     
  15. Apr 15, 2011 at 11:48 AM
    #35
    OZ-T

    OZ-T Thats what it is to be a slave ...

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    I don't think anyone would argue that
     
  16. Apr 15, 2011 at 12:06 PM
    #36
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
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    The 8.4" housing is stronger. IIRC, the gears are the same.


    What makes you think the 4.10's are thicker? The 3.73's are a stronger ring gear.
     
  17. Apr 15, 2011 at 12:32 PM
    #37
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    Where did you read about the ring gear size? Everything I find says they are the same 8" diameter?
     
  18. Apr 15, 2011 at 1:44 PM
    #38
    BlueT

    BlueT Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    IIRC, In order to go down on ratio (go up on number) one has to move contact surface in such a way that pinion rotates more times per one axle rotation. In order to do this you either have to thicken the ring and reduce the pinion diameter or increase the size of ring and make pinion move back. I believe both are done. Either way ring on 4.10 will have to have more iron then ring on 3.73 . Thats why the front 2gens you can not put 4.10 into the 3.73 housing and you need 4.10 housing for that (more room) Thats why elockers are limited on the top ratio. non-elockers can go as high as 5.29 ratio because there is plenty of room.
    I tried finding motive gear explanation but no luck it was long time ago when I find it I will post it.
     
  19. Apr 15, 2011 at 2:24 PM
    #39
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    The lower the number, teh more strength its going to have. To add more teeth to the same size gear, you have to cut more of them, thus reducing material in the ring gear, and/or going to a smaller diameter pinion. Many times, if going to a numerically higher gear ratio, in the same housing, gear strength is reduced. Regardless, in the end, the tire (traction) is useually the weak link.
     
  20. Apr 15, 2011 at 3:21 PM
    #40
    BlueT

    BlueT Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    I dont think number of teeths is realy what causes the ratio change. If you have two circles each with 10 inch diameter then they have 1:1 ratio. So one spin of first one will cause the other to spin one time. This is regardles if each have 10 or 10000 teethes. Now if you increase diameter of one to 20 inches. Your ratio is 2:1. You have to cut teethes different way to make sure they overlap correctly but its not number of teethes that make difference its the difference in circles. 20 inch circle will have more material then 10 inch circle. Same way with R&P. 3.73 will require less material then 4.10. and 4.10 will require less material then 4.56.

    Shape of each teeth is balance to carry the max load with out jerking and slipping. Teethes transfer the load from gear to gear but material that holds the teeth is what transfer back to axle so if you have too much stress in between teeth and material holding them is not strong enough it will crack. Simple imagine grinding the ring to be 1 mm thick at the edge. Would that be able to hold teeths together ? Now imaging the same ring having a 1 inch of steel behind the teeths.

    I think Toyota wanted to meet requirements for fuel efficiency so they went with higher gear ratio (lower the number) That works fine for non-TRD's because there is still enough steel to back that ring up. NON-TRDs dont need to have locking ring so their ring is thicker. (somebody has pictures on forum comparing two) But on TRD offroads it looks like they hit too thin. So if somebody with TRD - OR upgrades to 4.10 diff should last much longer, 4.56 would be even better.

    Sorry about long post:)
     
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