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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 4.2L I-6 Engine and Drivetrain > Transmission Mods

Transmission Mods Performance Transmission Modifications

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  #11  
Old 05-01-2009, 10:33 AM
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Iahawkeye Iahawkeye is offline
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The easy way is to just buy both filters for the shallow pan and the deep pan. Then take back the filter you don't use. Make a note in the owners manual which filter you need and the next time you'll be ready. I know it is a pain to go back to the part store, but it is a bigger pain to go back while the pan is off and wind may be bloing dirt around.
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  #12  
Old 05-01-2009, 10:42 AM
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Quote:
Originally Posted by mdy View Post
I have a 06 Envoy. How do find out if I have a deep pan or shallow?

Thanks
Using the search function I came up with this post, complete with photo.

https://forums.trailvoy.com/showthrea...light=deep+pan

Post number 8
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  #13  
Old 05-01-2009, 10:58 AM
davidofva davidofva is offline
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2004 Chevy TrailBlazer LT
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what do you guys recommend if I do a pan drop/filter change,; mobil 1 for dex III or use a dex VI product in a 04 TB? not sure if I have an amsoil dealer around.
thanks
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  #14  
Old 05-01-2009, 12:22 PM
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Robert1101 Robert1101 is offline
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I use the DEX-VI and think the tranny is smoother. I also added a +2 qt. Hughes tranny pan, finned alum with a drain plug.
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  #15  
Old 05-01-2009, 08:02 PM
jack-pot jack-pot is offline
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I bought my Amsoil online, purchased the perferred membership and get oil at dealer cost. buying a $10 membership saved me over $75 on my final purchase. Good deal
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  #16  
Old 05-01-2009, 09:20 PM
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Not to thread steal or anything but why did GM use 2 different depth pans. Was it a model year change?
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  #17  
Old 05-01-2009, 10:05 PM
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Quote:
Originally Posted by 07BlazerMan View Post
Not to thread steal or anything but why did GM use 2 different depth pans. Was it a model year change?
That would be my guess.. but it was very early on.. so the early to late 2002's have the shallow pan.. as mines an 03 and has the deep pan
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  #18  
Old 05-02-2009, 02:52 PM
jackedupcanyon jackedupcanyon is offline
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2wd typically have the shallow pan (~2-1/8" depth) and 4wd typically have the deep pan (~2-7/8"). Some of the 2wds with towing or cruise packages may have the deeper pan. The deeper pans sometimes will have a inch or so drop towards the rear of the pan.
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  #19  
Old 09-30-2018, 06:44 PM
crashrescue crashrescue is offline
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Thanks

Good info. It's a big help.
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  #20  
Old 09-30-2018, 07:52 PM
miketexas miketexas is offline
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the easy way to do it is look at this and see what pan you have.

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