4x4 vibration

[schmidt]

just bought a 1992 4 runner and the 4x4 hasnt been used in along time the guy said he has owned it for 15 years, my problem is, that when i put it into 4x4 hi it works fine untill u go over 30kmh it starts to vibrate alot and also it will not goin into 4low at all, i took it up in the bush the other day and used 4hi and it climbed over everything easy, i just dont understand why its vibrating when im driving on the road?????????????

[jetwhine]

Schmidt,

You might want to take a look at the front drive line. If it has not been used in a long time chances are the u joints are dry and in need of lube or maybe a replacement of the joints. Just a side note: You might want to do a full lube job at this time. When trying to go into 4low you might want to just get it rolling then coast and try to engage it.

[fourwd1]

There should be be 3 zerk fittings for the 3 u-joints in the front axle, the 2 in the CV joint require a needle adapter for the grease gun to get to them. you might have one for the slip joint as well.

[schmidt]

ok, im just not to sure what all that means i havent worked on something this old befor i used to have a 2007 f150 and i had to replace the iwe hubs a few times and thats all i know about the front end, is there a diagram that shows me what to do? i just dont know where ur talking about greasing

[jetwhine]

schmit,

The drive line in the front has u joints on both ends of the driveshaft. They have grease fittings on them known as zerk fittings. These fittings take grease from a grease gun. Grease them until you see grease ooz from the u joint. You also have what is called by toyota a propeller shaft. It is a slip joint drive shaft. The design is for taking the load off of the drive shaft when coming to a stop and when taking off from a stop which moves in and out(in for stopping and out for taking off from a stop). The shaft has a zerk fitting where the two shafts slide into one another. Grease it intil you start to see the shaft move to expand. That sould be enough. The ball joints on the steering knuckle has zerk fittings on it to lube also they are hard to see whitout taking off the wheel. Hope this helps.

[schmidt]

so i feel pretty stupid.......i went to a transmition place to get the vibration looked at, so i didnt know u had to pull the 4x4 shifter towards u to put it into 4low hahahahaha annnnd it turned out that the guy that had the truck befor me put 2 different sized tires on the front one was a 75 and one was a 50 so thats what was making the vibration so i feel pretty dumb i got new wheels and tires and everything works great, on the good side i got it for 1800$ ccuz the guy thought there was big problems with it hahahahhahaha he wanted 4000$ so i got a pretty good deal eh....truck looks brand new

[jetwhine]

Great another happy 4runner owner!!!!

[schmidt]

yah i love it so nice to drive and goes where ever u point it, just wish it had a lil more power haha wont be gettin a speeding ticket thats for sure