Z71 Tahoe 10k miles maintenace
 

Just hit 10k on 04 Z71 Tahoe. What tranny and differential fluids should I use?

Best part is that I hit 10k pulling a Ford Expedition out of the sand at SPI.
:jest:

i don't change my ATF and diff fluid that often. but i guess it you are towing, it makes sense.

for ATF, look for Dextron III

for rear diff, i use 85/140 valvoline, but that is more for posi

I was thinking of dropping Royal Purple Synthetic or B&M Synthetic in the tranny, and Royal as well in the differential.

go for it. with what they charge per quart, it must be good

Anybody else using Royal Purple or B&M synthetic?