First remove both front and rear driveshafts. Then remove skid plate underneath transfer case. Remember to unplug the electric motor wiring harness for explorers with electronic four wheel drive switching. Remove vacuum line on the top of transfer case. Unbolt Speedometer cable mount from top/rear of transfer case. Remove five bolts connecting the transfer case to the transmission, this step will cause some transmission fluid to leak from the shaft housing (approx. half a litre) so place a drain pan underneath. Remember to either place a jack or wood blocking under transfer case before removing the last bolt connecting the transfer case as it is heavy (approx. 80-90 lbs.).
SOURCE: transfer case removal and installation
You need to remove the skid plate/crossmember (6 3/4 bolts at the frame and 3 nuts at the trans mount.). Support the trans first with a jack and a block of wood before removing. Remove the rear drive shaft from the differential and pull it out of the transfer case. Unbolt the front shaft from the transfer case only and wire to the side with a coat hanger.Disconnect the vacuum connector from the top and the speedo cable. Unbolt the shifter and bracket (tricky operation). unbolt the transfer case from the trans and pry it rearward with a floor jack under it. Reverse operation to install. The 87 used a different case than the 231 from the factory but the 231 will work. You may have a concern with the length of the shift linkage. If you do anyone with a welder can extend it for you. Good luck hope this helps.
SOURCE: transfer case diagram
i have the solutios contact me [email protected] i have the diagram of transfer case, can i give you contactme. see you
SOURCE: Leaking transfer case..
First of all yes it will damage the transfer case with no oil in it or even low oil. if it is just a seal then it is easy to replace, but if it means splitting the transfer case this is not a job for the diy, unless you have experience with transmissions or transfer cases. It should not be too expensive to have the work done by a profesional. Which also give you a warranty.
SOURCE: Transfer Case Replacement? Cost?
that sounds too high to me.. check local junk yards for price first, then call a shop and ask them how much labor it is to install it..will be much cheaper....im a garage owner and the labor book is showing 2.1 hours to replace times their labor rate
SOURCE: front drive shaft/transfer case removal 03 chevy trailblazer 4wd
Sounds like you got it. They are heavy and ocward (spelling?). As for the front drive shaft take the bolts out and give it a couple of wacks with a dead blow hammer then slide it out. Maybe a few days before hand give it a good spray down with wd40 or like product. Also when you get to the last bolt for the t-case to trans loosen it half way then put a drain bucket under it and seperate it a little and let the trans fluid drain some, or you will be wearing it.
Disconnect the ground cable from the negative battery terminal, by using a wrench to loosen the retaining bolt and pulling the clamp off the terminal.
Raise the vehicle and support with jack stands placed underneath the frame.
Drain the transfer case. Locate the drain plug near the bottom of the transfer case. Place a waste oil collection pan underneath the plug and use a socket to remove it. Once all the fluid has drained out, reinstall the plug.
Remove the bolts that connect the rear driveshaft to the rear axle yoke using a socket. Lower the driveshaft, and slide it backward underneath the rear axle to disengage it from the transfer case. Remove it from the vehicle.
Remove the bolts that connect the front driveshaft to the front axle yoke using a socket. Lower the driveshaft, and slide it forward underneath the front axle to disengage it from the transfer case. Remove the driveshaft from the vehicle.
Label and disconnect the electrical wires and vacuum lines connected to the transfer case. Use masking tape and a marker.
Remove the transfer case shifter rod. Using needle-nose pliers, remove the clip that connects the shifter rod to the transfer case. Slide the rod away from the transfer case.
Position a floor jack underneath the transfer case. Raise it enough to take the weight of the transfer case off the transmission.
Remove the bolts that connect the transfer case to the transmission using a socket or wrench.
Slide the transfer case rearward to disengage it from the transfer case. Lower the floor jack, and remove the transfer case from the vehicle.
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