73-87chevytrucks.com
73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: BIG CHEVY on March 27, 2010, 04:35:22 pm
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EXACTLY WHAT KIND OF LUBE DO YOU PUT IN THE REAR CHUNK OF MY TRUCK? ALSO DO BOTH TAKE THE SAME THING?
I HAVE A 79 K-10 WITH NP 203. NEW TO ME SO I AM GONNA MAKE SURE ITS DONE RIGHT SO FOR PEACE OF MIND
I WANT TO BE IN AGREEANCE WITH ALL OF YOU. THANKS GUYS.
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Do you mean the read end? 80w90
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YES BOTH REAR AND FRONT. ALSO THE FRONT HAS A DRAIN PLUG AND A HOSE COMING OUT OF THE TOP.
THE REAR HAS NO PLUG AND THE SAME HOSE COMING OUT THE TOP. WHAT GOES IN EM? AND WHAT ARE THOSE HOSES?
HOW DO I CHECK THE REAR OR ADD/REPLACE?
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Those are both 80w90. If it's a posi in the rear you'll need limited slip additive. The hoses on top are breathers and they just vent the housings. Just remove the fill/check plug on level ground. the level should be just about to the bottom of the fill plug. The fill/check plug on the rear is not on the cover, it's on the front side and is a 3/8" drive square so just use a 3/8" ratchet to remove it. Make sure you clean around the check plug before you remove it.
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You can drain them and replace with synthetic oil.
By the way all caps. is considered yelling!