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| 01-04.5 LB7 Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect |
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| | eBay Motors #1 (permalink) |
| Junior Member Join Date: Aug 2009 Location: Vancouver, WA
Posts: 143
| Lower oil pan gasket replacement I've got oil seeping from the lower oil pan. I've heard the upper pan gasket is a motha' to replace, and that the lower is much easier, but it still looks like a tight fit for the cross bar just below the pan. Can someone help me out with a procedure? Thanks much. Also, any recommendations on RTV gasket material (namebrands)?
__________________ Hayhauler 2003 Chevy 2500 HD DEAD w/ 214K - 5/15/2012 (blown head gasket; not sure why... only light tuning and mods... RIP) PPE Hot +2 ET Tuner (levels 1-3), 2" Torsion Bar Lift, KYB MonoMax Shocks, Firestone Airbags, K&N Air Filter, Deep Transmission Pan + Transynd Fluid 3.5" straight pipe exhaust (no muffy - no kitty) Intake Horn Ported, PPE Boost Increase Valve, Gauges |
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| | eBay Motors #2 (permalink) |
| DuramaxForum Fanatic ![]() Join Date: Apr 2008
Posts: 6,525
| Remove the crossmember, then remove the bolts to the lower oil pan. Once the bolts and nuts are removed, get a flat "Putty Knife" to "cut" through the sealer between the upper and lower pan, it needs to be pretty flat so you don't bend or damage the pan. Then remove the pan. To remove the upper pan you need to remove the tranny as there are two bolts that go into the pan from the back through the bottom of the tranny adapter. I use GM Sealer, it is pretty sick stuff, I think the part # is GM P/N 12345739
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| | eBay Motors #3 (permalink) |
| Junior Member Join Date: Aug 2009 Location: Vancouver, WA
Posts: 143
| Thanks bigdaddydiesel. Is the crossmember just an un-bolt and remove operation?
__________________ Hayhauler 2003 Chevy 2500 HD DEAD w/ 214K - 5/15/2012 (blown head gasket; not sure why... only light tuning and mods... RIP) PPE Hot +2 ET Tuner (levels 1-3), 2" Torsion Bar Lift, KYB MonoMax Shocks, Firestone Airbags, K&N Air Filter, Deep Transmission Pan + Transynd Fluid 3.5" straight pipe exhaust (no muffy - no kitty) Intake Horn Ported, PPE Boost Increase Valve, Gauges |
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| | eBay Motors #4 (permalink) |
| DuramaxForum Fanatic ![]() Join Date: Apr 2008
Posts: 6,525
| Yes sir, you'll need an 18mm wrench and socket or two wrenches, but just unbolt the two bolts oneither each side and drops right out...
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