Question about 1986 Toyota Pickup 4WD

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Hello, 1986 Toyota 4X4 Truck 22R carb engine manual transmission. My son was driving it and the rear wheels locked up. Driving in 2 High mode. He got the truck pulled over to the side of the road using 4X4 high after locking in the front hubs then called me. I tested clutch, engine etc. Engine runs fine, clutch works. Engage transmission and start to release clutch and tranny binds up, (2 high) rear wheels slightly turn, maybe about 1/8 revolution do not turn fully. the engine bogs down and dies like having the parking brake on and just lugging the engine down. I removed the drive shaft and the rear wheels turned freely, but the transmission appears frozen. I'm thinking the transmission broke a gear and needs a rebuild. Any comments or thoughts of what to check before laying out the money for a rebuild?

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  • Bucky2u Dec 24, 2008

    My 1990 Toy std truck, 2wheel drive, 4 speed manual tranny locked up in the driveway. Gearshift will not go into either 1st or 2nd. 3rd & 4th feel like the engcy brake is on. motor strains to move forward but will not move veh. When gearshift is in what feels like the neutral position the truck backs up when I let clutch out. There is no neutral position, or out of gear. There was no loud pop or bang and no chattering of gear when this happened. It just stuck.

  • Anonymous Mar 21, 2014

    while going down road at 60mph rear wheels locked up tires wouldnt spin until i removed drive shaft pulled diff cover and didnt see anything outta ord ?

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I've seen a similar issue on other transmissions where the shifter slips out of the slots in the shift forks, either due to shifter bushing wear or just general wear on tte trans. It can usually be remedied at least temporarily by popping the shifter top off the trans and resetting the forks all back to nuetral and then reinserting the shifter. It gets jammed when two forks are trying to engage two different gear sets.
On one of the 4x4 sites, they tell you how to replace the shifter bushings, cheap fix if you are lucky.
Good luck.

Posted on Feb 24, 2009

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Honestly, it will be cheaper to get a used tranny from a wrecking yard than it will be to rebuild yours... they are very easy transmissions to change

Posted on Jan 14, 2009

  • thetallguy67
    thetallguy67 Nov 13, 2014

    If you go used, just be sure to get it from a REPUTABLE yard that sells actual 'working' parts, or you'll be paying for full rebuild soon enough anyhow.

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Jack up the rear end and try moving the wheels by hand while in 2 HI, both 1st gear and neutral. If they don't turn fully, disconnect the drive shaft (don't forget to witness mark the flanges!) and try turning wheel and drive shaft individually.. If the wheels move, it's your tranny or transfer case. If the wheel still doesn't move with drive shaft off, your rear differential is most likely the problem.

Posted on Nov 13, 2014

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2003 ford f250 superduty 4x4 don't work no indicator light on dash changed4x4 switch module what next?


Check for codes. Usually part stores do it for free. here is how it works.
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The New Venture Gear NV 273 electronic shift transfer case is a 3-piece aluminium design. The unit transfers engine power from the transmission to the front and rear axles. Under normal driving conditions the unit is in 2-wheel drive high (2H), but when desired, the operator may shift into 4-wheel drive high (4H) or 4-wheel drive low (4L). The transfer case is shifted electronically. The unit is lubricated by a positive displacement fluid pump that channels fluid flow through holes in the mainshaft.

The encoder assembly used for mode indication is of a Hall-Effect type. The system uses a total of 4 independent transistors for mode recognition. Each transistor is associated with a specific range of motor movement. When the circuit to each transistor is closed, a ground path to any of the A, B, C or D encoder pins is accomplished. When the circuit to each transistor is open, the connection to any of the A, B, C, or D encoder pins is pulled to voltage. Mode indication is "decoded" by the 4x4 module based on the varying combinations of signals coming from the transistors.

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I'm also assuming it is indeed a 4x4 and not a two wheel drive...sorry, I have to ask!

All the V8's GC's were Quadra-Trac. Please confirm this with what is label on your shifter. If so, it should say "4Hi, N, and 4Lo".

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