If I recall 100k is normal and 50k is "severe duty" or something like that.808trailblazer said:My 07 trailblazer has 89,xxx miles its a daily driven 7 days a week. Fluid doesn't smell burnt. Should I change it? When I got it had 12,xxx mileage. Lmk what u guys think.
I want to change the pan also I going with a pml pan it has a drain plug and 7quart capacity over the stock pan. Plus it made out of aluminium.navigator said:If I recall 100k is normal and 50k is "severe duty" or something like that.
That is using a full replace of all fluid via the pump out method (or have it done at a shop) and new filter.
If you are doing normal driving and plan to do a full replace of fluid/filter I would just wait until about 100k. That is if you think the fluid is ok and aren't having any issues.
I changed mine at 75k with a new filter. with the plan to do a drain/replace of the fluid every 25k miles.
I have a dorman tranny pan (with drain) on the way.
I am going to change it again (at about 100k now) and then do a drain/refill every 25k miles.
I'm installing a cooler as well so I might do the pump out method while I am at it and start clean.
Quality my friend. Also the pan is 2 quarts more than the stock pan plus drain plug ans finned for better cooling.tblazerdude said:Wow those are expensive transmission pans. I paid $35.00 shipped for the dorman with the drain plug. I saw some for our trans with fins and a drainplug for around $100 on summitracing.com.
808trailblazer said:Quality my friend. Also the pan is 2 quarts more than the stock pan plus drain plug ans finned for better cooling.
True that! What's a good brand for a trans cooler?blazinlow89 said:You could also add an external cooler which will give you better cooling and extra capacity.
Did the requirements change after a certain year, I swear roadie has beat 50k miles for the t case, trans and rear on the earlier (04) tucks. I remember because every time I read it, I feel guilty as I'm past that point.
808trailblazer said:True that! What's a good brand for a trans cooler?