OEM GMC Sierra 3500 Transmission Pan

GMC Sierra 3500 Transmission Pan Parts Questions & Experts Answers

• Transmission Pan
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  Q: How to replace the transmission pan on GMC Sierra 3500?

  A: The first step to change an Oil Pan requires increasing the vehicle height. Remove the Drain Plug and its Drain Plug seal from the Oil Pan so fluid can drain into a suitable contained while you record fluid amount loss since reusable fluid remains in good condition. The drainage process should begin with fluid inspection before removing 12 bolts where the Oil Pan remains fixed once the last bolt becomes loose. Remove the Oil Pan along with its gasket so you can check the magnet for big metallic pieces that would signal transmission failure. You should pull down the transmission internal oil filter to remove it from the suction tube in the transmission case but keep both filter and seal intact when handling only the Oil Pan or gasket replacement operation. After removing the transmission internal oil filter seal from its position either in the filter bore or the transmission case you must discard both elements when replacing anything. Remove all gasket residue from the transmission case while also fixing any damage which might result in leakage. Fitting a new seal onto the transmission internal oil filter tube's tube requires placing it against its shoulder before pushing filter and new seal into the transmission case's seal bore. Position 2 m8 x 1.25 headless guide bolts into the transmission case Oil Pan mounting face corners before placing a gasket over the pan and correctly setting the bolt holes. Set the gasket and Oil Pan over the guide bolts before keeping them steady to fasten 2 bolts . Guide bolts removal should be followed by tightening ten remaining Oil Pan bolts to 27 nm (20 ft. Lbs.). Insert the Drain Plug followed by its Drain Plug seal before tightening it to 35 nm (26 ft. Lbs.). Lower the vehicle while filling it with dexron(r)vi automatic transmission fluid which requires clean and approved fluid type only before inspecting the transmission fluid level since drained fluid remains in exterior circuits and transmission cavities.