Driveshaft Fluids

[masphx]

Hey Guys,

Prepping for a 3000 mile road trip and want to replace the drive shaft fluids. Have had the truck for ten months now and have put 10K on it! Everything seems good with the drive shaft except for a light noise under acceleration and a strange vibration sound I get at 2000 and 2500 rpm when cold.

Anyway, found this site. Is it really this cut and dry?

4Runners.org - Changing Your Front, Rear, Tranny & Transfer Case Fluids

What special tools will I need and what are good/best fluids to pick up at Autozone, Pepboys or Orileys? I don't really want to add synthetic to the rear Diff as I heard it can cause the rear seals to leak?

I know that the fluids wont be the remedy for the vibration sounds but at least the rig will have new fluids. Still searching for these vibrations. I have also lubed the drive shaft.

Thanks in advance,

Mason

 

[cj80cruiser]

I used Mobil 1 in my tcase but if you're worried about synthetic in the rear then use Lucas.

 

[thor999]

It is my understanding that the front diff drain plug, if ever serviced before or rusty, is going to strip regardless... make sure to remove the fill plugs first to make sure they can be removed, use extra care on the drain plugs, soak in PB Blaster or Kroil for a few nights beforehand, and be prepared to strip that drain plug; i.e. have the means available to remove a stripped bolt, and new plugs to replace, just in case; you can always return them if you don't need them.

 

[ycl1688]

I used Mobil 1 in my tcase but if you're worried about synthetic in the rear then use Lucas.

what do you use for the rear lube oil ?

 

[nevada]

It is my understanding that the front diff drain plug, if ever serviced before or rusty, is going to strip regardless... make sure to remove the fill plugs first to make sure they can be removed, use extra care on the drain plugs, soak in PB Blaster or Kroil for a few nights beforehand, and be prepared to strip that drain plug; i.e. have the means available to remove a stripped bolt, and new plugs to replace, just in case; you can always return them if you don't need them.

good advice.

also, make sure to use a 6 point socket, NOT a 12. as it will increase the likelyhood of stripping the bolt.

also, use a socket that the teeth come out flush to the end. a LOT of them are recessed a bit, and the drain plug is short, so you dont get much bite on the bolt. also, helping to strip it.
you may have to grind the socket down to make it work better. its worth it, even if you have to buy a socket specifically for THAT use.