one of the lines should be the same, transmission to lower radiator cooler
from top of radiator to this cooler in
out from this cooler back to the transmission
GM GENUINE 25999420
GM GENUINE 15779543
the best time to upgrade the trans cooler is before you put 100k towing miles on it, i sposed the next best time is now :secret:
props for actually changing the fluid often after seeing those temps
cooler looks very similar to the popular transcool 40k, but even easier install
no problems towing here either, getting ready to do about 1500mi with 6k car/trailer next week.
has made the trip a couple times with no issues. if i tuck in traffic i usually see nearly 20mpg and def isnt even a thought.
i did yank a loaded to the gills uhual 6x12, along with the truck pretty...
never heard of it being done with a bi directional scanner....can be done pretty easily with hptuners.
if thats all hes ever going to want done, prob just pay someone for a tune. initial cost for mpvi and credits is going to be a couple hundred bux, but after that cost would only be for credits...
also... construction sites around here for security set up a few trail cams at the entrance and/or a panned out view of the build site. might be a good idea and provide a time lapse
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