Manual 4x4 to pushbutton 4x4 swap.

Discussion in 'Transfer Cases' started by CRF450R, Aug 19, 2019.

  1. homesick

    homesick OBS Enthusiast

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    Not taking sides here, but...

    Does that mean his actuator is working ok?

    joe
     
  2. CRF450R

    CRF450R Truckin'

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    I didn't want anyone's opinion on the the swap cause I know there's tomany inbread hillbillies that still live in stone age manual crap shift 4x4. I wanted to know exactly what needs to be done to swap out the manual stone age 4x4 to a more modern pushbutton 4x4. I decided to pass on the truck but I like the 5.7 TBI over the 5.7 vortec but the problem is the TBI 5.7s never came with pushbutton 4x4 I hate manual shift 4x4s absolutely hate them. But I would like a 90-95 5.7 tbi Z71 but I want to swap it to pushbutton 4x4.
     
  3. b454rat

    b454rat I'm Awesome

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    There have been more problems with push button 4wds since they came out than stone aged manual cases in the last 60+ years, but push button is better. It can be done, but I'd think it would be a wiring fuckin nitemare. I know on manual cases think there is only a wire to tell ECM that it's in low, but wanna say there is more in the Autocrap version. So would possibly have to have a custom chip made for a TBI truck.
     
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  4. Kailua305

    Kailua305 Newbie

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    To this day I still have problems with my pushbutton 4WD on my 96’ Z71. The buttons are brand new, front diff actuator is new. Half the time them buttons decide they don't wanna light up and wont allow me to select 4wd. Other times they do light up & allow me to select 4HI/4LO. If I pull the #2 fuse inside the interior fuse box and put it back in, the buttons light up momentarily then shut back off not allowing me to select any range. When it works, It works great. But when it decides to lock me out of 4wd, its a problem because I use 4wd often. My suspected culprit is the TCCM module on the steering shaft under the dash, several people have told me it’s possibly failing.
     
  5. b454rat

    b454rat I'm Awesome

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    No offense but WTF do you need 4wd for in Hawaii?!? Beach cruising?
     
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  6. Brendan

    Brendan Newbie

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    if you just spend the time you can make a harness i made one for my 1998 gmc 2wd that i converted to 4wd with the 241c and the 4lo works because of the pin in the computer and i also only run of the transfercase switch for the front chunk and it just took some reading and some of my own time to figure things out. also you said that you have never had a problem but i still like the 241c not the 243 but thats your choice.
     
  7. Brendan

    Brendan Newbie

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    its not that hard to do the swap and ive done a similar swap on two 1999 gmt400 Tahoe's from the 246 with auto 4wd to the 241 its not that hard you just have to know what you are doing. ive been thinking about show some photos and making a way to get this out so more people can have the better 241c in there truck/Tahoe. yes the 4lo works with the trans and the 4wd actuator works in the front with both my 2wd/4wd conversion and 246 to 241 swap as well but i dont know about the 243 to 241 swap havent done one but might look into trying one.
     
  8. Kailua305

    Kailua305 Newbie

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    Driving in the sand, mud, mountains ect. You’d be surprised how much offroading we do out here. Our sand especially is super soft, 2wd doesn't cut it.
     
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  9. Brendan

    Brendan Newbie

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    i know what you are taking about and thats why im going to do a dana 44 swap out of a 1976 ford f250 under mine to get rid of the electronic 4wd
     
  10. Brendan

    Brendan Newbie

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    thats why the the Tahoes that had the auto 4wd had a separate computer that i did away with when i did a swap on my two Tahoe's and went to the 241 and had to jump some wires to get the ifs 4wd to work.
     

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