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Discussion Starter · #1 ·
since the weather is finally starting to cooperate a bit here in Ohio, thought it would be nice to be out in the garage and install a couple items on the Colorado. Installed a Lokar transmission dipstick ( still annoyed GM skimped on this) , installation was straight forward, although routing the dipstick around everything on the rt side of the engine compartment was trial and error for awhile. then went ahead and plumbed in a trans cooler. as I tow a small travel trailer ( 3500 lbs) and wanted a little insurance.
 

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That’s nice. Didn’t know they made one of those. Might have to look in to that. Does it plumb in on the top where that little plastic plug is on the passengers side?
 

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Discussion Starter · #3 ·
hey, Burgess159
I bought a lokar, part number XTD-36L80 FM36 purchased mine from Speedway Motors for $109, which is the 36" Lokar Black Stainless Steel version that is made to fit the 6L80 transmission. i had read that the 6L80 and our 6L50 uses the same black fill plug. it fit tight, no worries of it coming out or leaking, but I fabricated a bracket to make sure it stays put.
 

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I had the same Lokar installed when I had my transmission flushed to remove any manufacturing debris at 7,000 mi. This is also where I am sampling the fluid for analysis every 3rd engine oil change.
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