22Platinum
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Bought a B&M deep transmission pan from American Trucks. Shipping was fast and free. Amazon, AutoZone etc wanted a whole lot more than RockAuto for the Mercon ULV. Bought 12 quarts and had 1/2 a quart left over, including changing the transfer case fluid. (NOTE: ULV does not go in the transfer case; Mercon LV does.. mistakes were made) A normal filter change is 6ish quarts to get onto the dipstick and 7.5qts total, but this deeper pan took 8 to get on the stick and 9.5qts to be between 5 and 6 on the dipstick.
Job was fairly easy really. Fordtechmakuloco has an excellent video (as always) on the procedure. On the 21 3.5 EB there is no need to remove anything other than the pan. Crack the rearmost bolts and let it drain; continue to loosen bolts towards the front. I used a $8 fluid pump from Harbor Freight and it worked perfectly. The B&M pan wasn't designed for the studs and heat shielding to be reinstalled and came with all new hardware. Don't forget to switch the magnet over before you reinstall! I broke the old pan getting the magnet off. Gasket is re-usable and didn't even attempt to leak; so nice not putting RTV all over everything and hoping for the best.
The aluminum pan doesn't cause the transmission to run notably cooler, maybe a few degrees, but I did notice that transmission temperature fluctuations were significantly reduced; instead of varying from 174-205 traveling at speed unloaded, the temps were steadily between 184-189.
The fluid was ready to be changed at 30,178 miles: was dark, though not black. Transfer case fluid was slightly lighter.
Job was fairly easy really. Fordtechmakuloco has an excellent video (as always) on the procedure. On the 21 3.5 EB there is no need to remove anything other than the pan. Crack the rearmost bolts and let it drain; continue to loosen bolts towards the front. I used a $8 fluid pump from Harbor Freight and it worked perfectly. The B&M pan wasn't designed for the studs and heat shielding to be reinstalled and came with all new hardware. Don't forget to switch the magnet over before you reinstall! I broke the old pan getting the magnet off. Gasket is re-usable and didn't even attempt to leak; so nice not putting RTV all over everything and hoping for the best.
The aluminum pan doesn't cause the transmission to run notably cooler, maybe a few degrees, but I did notice that transmission temperature fluctuations were significantly reduced; instead of varying from 174-205 traveling at speed unloaded, the temps were steadily between 184-189.
The fluid was ready to be changed at 30,178 miles: was dark, though not black. Transfer case fluid was slightly lighter.
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