Can you install difflock on 2005 4.5 L/Cruizer

behind the front passenger side headlight RHD drivers side on LHD their sit teh computer ,water often gets into the connections ,remove the multiplug connection ,make sure none of the pins are corroded away spray with WD 40 and refit .if that doesnt work seek the advice of a autobox specialist ,

the diff switch, There are a couple of things u can check on the diff (rear) there are pipes (rubber pipes going onto the diff) looks like two ,see if they are not perished and if they are in there is also a switch on the diff (there is on the left hand side if you lay under the back (head first ( to the front))see if it makes contact or maybe pulled out and then there are relays or something in the passenger side.

didnt replace bearing correctly also did you grease them first??

Yes, changing the oil will help, however, you will also have to clear the "change oil" light. Either figure out what buttons to press to delete that, or go to an auto parts store and ask if they can help you reset it.

FSM time
ever heard of the FSM. its a magic book that tells you how to do the diagnosis of all parts on car.
get one.
alldata.com is a close subs.

go to www. automecanico +www.autoelectronico. com translate the websites with your browser and get the topic and fix it.

God bless you

Do yourself a favour and pick up a Haynes manual for your truck. It will cover your truck from front to back. Available at many automotive stores or just look on E-Bay.

Do not use 4wd and/or difflock on hard surfaces!!! The seeming effect of braking that you feel is actually what is called drive-train wind-up.(Hard steering should also be felt) What it means is that one wheel on the system is turning slower than the rest of the components and considering all components are connected via metal tubes(over simplified, I know) you can imagine for yourself the effect of holding one end of a tube still while twisting the other end!!! You're going to break something!
If your difflock stays engaged even with the button in the "off" postion, try reverse 10 feet then forward 10 feet. If this does not help, have a look at the differential, there is a tube leading into it, disconnect, then reconnect and try again.

The discovery is as previously mentioned permanent four wheel drive.However the difflock/range lever in most suffers from lack of use and siezes all i had to do when i bought mine was plenty of WD40 and patience as i don't think it had been in low range or difflock from the day it was built.don't try to force it just spray it and let it soak then try keep doing this and it should free up if not it may be the selector grubscrew has worked loose just threadlock it and screw it back in.

Run a trouble code test on the computer, Kragen auto and others do this for free, I think you may have a bad transmission speed sensor, the code will tell the story.