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4wd to 2wd coversion

Discussion in 'The Garage' started by nutty17, Jul 21, 2004.

  1. nutty17

    nutty17 Newbie

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    I have a 91 blazer (350tbi, 700r4, np241) and I was wondering if the frame is the same as a 2wd 73-87 p/u frames as far as the front end goes. I am hoping to get a 2wd crossmember and attach it to my frame with minimal modifications. Also can I remove the transfer case and put on a tailshaft to keep my tranny once I'm 2wd?

    Any input would be greatly appriciated.

    Shane
     
  2. bshewmaker

    bshewmaker Registered Member

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    why? There are plenty of 2wd subs and pickups, and not near enough 4wd blazers. Why would you want to make one less?
     
  3. BowtieRed

    BowtieRed 1/2 ton status Author

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    4wd - 2wd conversion is all of 8 bolts, 4 on each end of the front driveshaft, take them out.
     
  4. spearchucker

    spearchucker 1/2 ton status

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    [ QUOTE ]
    why? There are plenty of 2wd subs and pickups, and not near enough 4wd blazers. Why would you want to make one less?

    [/ QUOTE ]

    His username should answer your question. /forums/images/graemlins/screwy.gif
     
  5. nutty17

    nutty17 Newbie

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    reason 1 - anything over a stock height 4x4 won't fit in my garage

    reason 2 - I can't find a rust free 2wd

    reason 3 - I already own this one and if I keep it I get to keep the fuel injection and overdrive.
     
  6. Eric M.

    Eric M. 1/2 ton status

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    Never thought about it but let me give it a try:

    2 wd rear leaf spring hangers (3" shorter than whats in there now)
    new rear shocks
    Rear drive shaft lengthened
    tranfer case out, adaptor off, tail piece on transmission
    figure out speed sensor hook up in tail piece (will need this for ECU)
    transmission cross member
    patch hole in floor for shifter
    remove front end, leafs, hangers
    bolt up front K member with all the suspension and brake stuff (not sure how easy or hard this is)
    upper A arm mounts??? better see where they attach
    check your oil pan, heard they are different for 2 and 4 wd but not sure
    new front brake hoses
    new front shocks
    front shock mounts might be different, better take a look at a 2wd and 4wd set up
    steering box change
    install all 2wd steering components (none of the 4x4 stuff will work)

    I'm sure I'm missing somethings, but there's the short list.


    Eric M.
     
  7. 55Willy

    55Willy 3/4 ton status

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    The easist route to go is to pick up the kit for the mustang II crossmember set up, gonna be the lowest and less work involved to set up. and i would just remove the front axle and driveline and keep the transfercase in there. you never know when ya might need to do a big smokey low range burn out,LOL.

    Oh and if you do try to graft a 2wd front on why not just go for an IFS set up off a 88-98 truck and keep it 4wd, you'd be able to go lower with the half shafts plus a lowered 4wd with a supercharger or turbo would be tits!
     

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