What other year models will have the same differential as a 1989 gmc truck 1/2 ton 4 wheel drive i looking to change out the whole rearend.

Sorry no idea without a look ,ask a local mechanic to have a look for you

Hello there,

From this page https://www.worldsbestoil.ca/product-cross-reference.php?year=1996&make=TOYOTA&model=TACOMA&engine=2.7L&vin=1



Extract.......

.Engine, 2WD, with filter - 5.4 quarts [1]

Engine, 4WD, with filter - 5.3 quarts [1]

Cooling System, Initial Fill - 9 quarts

AMSOIL Antifreeze and Engine Coolant

Automatic Transmission, A340E Initial Fill - 1.7 quarts

Automatic Transmission, A340F Initial Fill - 2.2 quarts

Automatic Transmission, A43D Initial Fill - 2.6 quarts

Automatic Transmission, Total Fill

4 speed A340F - 10.4 quarts

4 speed A340E - 7.7 quarts

4 speed A43D - 6.9 quarts

Manual Transmission, - 5.3 pints

Differential, With ADRD Front - 2.6 pints

Differential, Without ADRD Front - 2.4 pints

Differential, 2WD Without LSD Rear - 6 pints

Differential, 4WD Extra Long Rear - 4.5 pints

Differential, With LSD Rear - 6.4 pints

Differential, Standard Rear - 6 pints

Transfer Case, - 2.2 pints\'

First check plug on actuator on front differential and be sure that plug is securely fastened to sensor and that plug has no rusted or corroded pins. Then test actuator and be sure it is operating properly. More than likely your four wheel drive actuator is malfunctioning.

Not likely. Usually abuse 4 wheeling or tranny bolts loose and diff.shifting around. You might have smacked something with it when driving whether on road or off road.

I see a red flag here. If they don't look the same, they may have different gear ratios. This is critical in a 4 wheel drive. Front and rear gears have to match

it sound like it is going in to 4low rang but it may only be low 2wheel power brake it a little on dirt if the tires sin in the rear it was only low ranged 2 wheel u can get this by putting it in 4low and unlocking the hubs it may be a hub prob as it is common

Yes you do. If it's 4x4, i find it easier to pull the motor.

In the 89 model the 1/2 tons came with the R700(4L60)
and the 3/4 tons came with the T400 (3L80)

Please rate this fixya

if it has a 4.3 liter motor a 86 to a 97 if it has a 350 motor a 81 to a 96 will work hope this helps

drive shaft coupling ,check the rubber boot hasnt isnt split letting the dirt in as it sounds like it.better off with a real car like a jag