SAS gearing

OVRLNDR Jun 8, 2015

  1. OVRLNDR

    OVRLNDR Test Drive

    Messages:
    24
    Location:
    Fall River, NS
    Hi, I'm in the process of collecting the parts to leaf spring DIY SAS my 02 Xterra.
    Parts here are super hard to find - I've got the option of a complete Toyota axle (unknown year/model) with IFS hubs, and a 3rd member with 4.56 gears.

    Do you think 4.56's will work ok with my 4.636 rear ?

    Difference of 0.076


    Percentage difference
    between V[SUB]1[/SUB] = 4.56 and V[SUB]2[/SUB] = 4.636

    ( | V[SUB]1[/SUB] - V[SUB]2[/SUB] | / ((V[SUB]1[/SUB] + V[SUB]2[/SUB])/2) ) * 100

    = ( | 4.56 - 4.636 | / ((4.56 + 4.636)/2) ) * 100
    = ( | -0.076000000000001 | / (9.196/2) ) * 100
    = ( 0.076000000000001 / 4.598 ) * 100
    = 0.016529 * 100

    = 1.6529% difference



    Thanks
     
  2. OVRLNDR

    OVRLNDR Test Drive

    Messages:
    24
    Location:
    Fall River, NS
    Thanks, I believe the Toyota axle with the IFS mod brings the hubs out to 59 inches. I'd have to measure the front, but I think the rear is 63 inches - so 2 x 2 inch spacers might bring them out enough.

    Correction - I just measured rotor to rotor and it's ~59 inches :)
     
    Last edited: Jun 8, 2015
  3. Frogstar7055

    Frogstar7055 Wheeling

    Messages:
    554
    Location:
    Jacksonville FL
    You want a Dana 44.
    I'd keep looking.
     
  4. OVRLNDR

    OVRLNDR Test Drive

    Messages:
    24
    Location:
    Fall River, NS
    Unfortunatley there are no D44's from wagoneers here.
     
  5. TheFauxFox

    TheFauxFox Titan Swapped / SAS'd Founding Member

    Messages:
    6,012
    Location:
    Tuscaloosa, AL
    It doesn't have to be a Waggy 44.
     
  6. Jbat

    Jbat First Fill-Up (of many)

    Messages:
    274
    Location:
    Utah
    Look for a Dana 44 out of late 70s ford or any other pickup with drivers side drop diff. They will be slightly wider than the x rear but work good
     
  7. OVRLNDR

    OVRLNDR Test Drive

    Messages:
    24
    Location:
    Fall River, NS
    thanks, what about gearing with my 4.6 gears?
     
  8. Frogstar7055

    Frogstar7055 Wheeling

    Messages:
    554
    Location:
    Jacksonville FL
    Your probably gonna have to re-gear one or the other.
    4.6 sucks anyway for what your doing.
     
  9. xterror04

    xterror04 Site sponsor Founding Member

    Messages:
    1,294
    Location:
    Carlisle, Iowa
    You can easily get 4.9 and 5.13 gears for your factory read, and isn't the Toyota axle a passenger drop?
     
  10. Jbat

    Jbat First Fill-Up (of many)

    Messages:
    274
    Location:
    Utah
    Either regear to match whatever gears you put in the front or find a pair of matching axles (those trucks came with Dana 60 rears) and swap them both. Chances are you'll need to regear anyway and the 44 and 60 gears are cheaper
     
  11. Prime

    Prime Some Kind of In Charge? Admin

    Messages:
    34,401
    Location:
    Denver-ish
    If you're SASing, I gather that you're going to run at least 33s if not 35s. You're going to want at LEAST the 4.90s. If you only swap the front axle, you can get 5.13s for the h233b and matching gears for a D44.
     
  12. mtnzuk

    mtnzuk Bought an X

    Messages:
    140
    Location:
    Maryville, Tennessee
    interesting read. I am most likely going to look to an SAS conversion once I find my Xterra (hopefully) I read online where they sell some transfercase gear sets. Not cheap but does anyone use these or mostly just go with SAS and 5 ratio gearing with stock T-case?

    Pete
     
  13. OVRLNDR

    OVRLNDR Test Drive

    Messages:
    24
    Location:
    Fall River, NS
    Thanks for all the comments!
    My NOOB SAS approach will have to be reasonably inexpensive or not at all - and the reason for the question is because donor parts here are very scarce which makes them super expensive. There are no 1st Gen Xterra's around here, not even in bone yards.

    So...the plan is to keep my existing 265/75/16's currently on Toyota rims, use leaf springs, and this '79-'85 Toyota axle which comes with the IFS hub mod and a 4.56 3rd. I need to flip the axle too as it's passenger side drive. The good thing about that axle is it's a well documented axle setup for SAS's.

    The X isn't a DD, so having a 1.5% front to rear difference might be ok - we're mostly mud/woods here.
     
    Last edited: Jun 11, 2015
  14. Grandpa X

    Grandpa X First Fill-Up (of many)

    Messages:
    277
    Location:
    Luverne Mn
    You can't just flip the axle... the tires will turn the wrong way. You have to cut the housing flip the long and short sides. If I remember correctly this is hard to do with a toy housing. Thus why Tacoma folks also use Waggy 44's.
     
  15. OVRLNDR

    OVRLNDR Test Drive

    Messages:
    24
    Location:
    Fall River, NS
    yes, flip and move the 3rd to the other side of the housing.
     
  16. Grandpa X

    Grandpa X First Fill-Up (of many)

    Messages:
    277
    Location:
    Luverne Mn
    Better check on the ability to do that.... does someone local have the ability to align the housing correctly when welded back together. I wheel/know a lot of Toyota folks... they either buy an aftermarket housing (Diamond/Trail Gear) or run a waggy in order to go driver drop. Most of these guys are hacks... so if they could they would.
     
  17. OVRLNDR

    OVRLNDR Test Drive

    Messages:
    24
    Location:
    Fall River, NS
    yeah, the yotas boys here say the hack is to cut off the front housing cover and relocate the 3rd there. knuckles will need to be rotated too.
     
  18. Frogstar7055

    Frogstar7055 Wheeling

    Messages:
    554
    Location:
    Jacksonville FL
    Ya the Yota axle is just a bad idea all around.
     
  19. OVRLNDR

    OVRLNDR Test Drive

    Messages:
    24
    Location:
    Fall River, NS
    I appreciate and respect the input. I don't have the axle BTW.....It's just an option right now.

    If it's not a good idea, then I'll be wheeling with my Lokka until I can find something more suitable. Thanks
     
    Last edited: Jun 11, 2015
  20. xterror04

    xterror04 Site sponsor Founding Member

    Messages:
    1,294
    Location:
    Carlisle, Iowa
    Where are you located? Maybe we can help find an axle... I have the wagoneer Dana 44 up front with leaf springs and I love it... Definitely an inexpensive approach
     
  21. OVRLNDR

    OVRLNDR Test Drive

    Messages:
    24
    Location:
    Fall River, NS
    Thanks. I'm in Nova Scotia, Canada.
    From what I've read, that seems to be the way to go. How did you match the gearing up with the D44/H233b?
     
  22. drbandkgb

    drbandkgb Titan Swapped / SAS'd Founding Member

    Messages:
    11,187
    Sadly there is nothing cheap about doing this..
    I'm finishing up mine now..
     
  23. Prime

    Prime Some Kind of In Charge? Admin

    Messages:
    34,401
    Location:
    Denver-ish
    The matching set is 5.13s. They are readily available for the D44, and Rugged Rocks sells the matching gears for the H233b.
     
  24. OVRLNDR

    OVRLNDR Test Drive

    Messages:
    24
    Location:
    Fall River, NS
  25. xterror04

    xterror04 Site sponsor Founding Member

    Messages:
    1,294
    Location:
    Carlisle, Iowa
    I put 5.13 in front and rear
     

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