For instance, the owner's guide of the 2002 F150 calls for synthetic 75W-140 gear oil in the rear axle, while the front axle uses 75W-90 non-synthetic 4x4 gear oil. Clean and inspect the mating surfaces. The cover would move but would get stuck between the steering parts and the ring gear, it would try to wedge itself in between the two. As the car goes around a corner, the wheel on the outside of the turn is covering more ground than the wheel on the inside of the turn. However, if you want to, I don't think it's a problem either. Is loosening the steering the only way? Remember watching people run track during the Olympics? The differential in any car is going to pick up metal shavings in the fluid over time, and this is especially true for trucks that see a lot of towing or offroad use. The type of oil used in the front differential on four-wheel drive models may be different than what is used in the rear axle.
My factory sealed diff didn't even use a real gasket, only black silicone sealer. If the runners were required to run in their lane for a 400-meter race, the runner in the outside lane would actually have to run 408 meters. Then oil should start to drain When it drain all the oil then go ahead and remove the remaining two top bolts. The factory-approved method requires removing the cover in this picture. I did not take a look at the rear diff but would assume that it has both a drain and fill plug. How often do I need to replace the differential fluid? It could probably hual something as large as a tandom axel trailer with, say… If you're talking in terms of payload numbers, the F-150 has a class-leading payload number of 3,030 pounds.
Today, taking into account that the truck is 15 years old and probably has upwards of 200000 miles, i would be cautious towing much more than the occasional single axel trailer with the load weighing no more than about 1500 pounds. Based on no actual data, I chose to change mine at about 100,000 miles. If you're talking in terms of towing numbers, the F-150 has another class-leading capacity of 11,500 pounds. But maybe you guys have found a work around, other than sucking out the fluid. You need to be sure that the heater core is really the problem before tackling this… How to Change Your Motor Oil Introduction Plan to change your motor oil every 3,000 miles or every 3 months if you want to be on the safe side, but know that most cars no longer require an oil change after every 3,000 miles.
If it ever does start leaking, I guess I'll have to remove the steering rack and pull the back plate off, but hopefully that doesn't happen for a very long time. Just my opinion here, but I wouldn't bother with the front differential oil unless you think it's been contaminated. Installing a replacement gasket is also optional. . Slide your drain pan under the rear differential.
Is this correct, should I not flush my rear differential fluid? Another note: this procedure is easier with the spare tire removed. Once that happens, put the drain plug back in and tighten it down. Once that is done, it's time to break the seal. So here is the total weight capacity number of the Ford F-150. Remove the three oil pump screen and cover bolts, then remove the screen and cover. Always have an operational fire extinguisher close by, obey all first aid instructions in the event of an injury.
Install the oil pump and… Drain the oil. Note: Some Ford techs recommend not using the Ford spec 70W140 synthetic due to it not being able to absorb water and possibly leading to corrosion and failure of parts within the axle assembly. The F-150 is no different. Cracking the covers open remove a couple bolts on the bottom half will allow the fluid to drain out sufficiently. This article applies to the Ford F-150. For that reason I chose Redline 75W90.
Technically, it should not be required if you buy rear differential fluid that is already rated for a limited slip differential. Materials needed: - 3 Qrts of 75W-140 Synthetic Gear Oil I used Mobil 1 your truck may call for different fluids - 1 Tube of TransX Friction Modifier for people with limited slip only!!! Just my opinion here, but I wouldn't bother with the front differential oil unless you think it's been contaminated. . I normally go with Royal Purple Max for my fluid which has it included in it already but does not require it, but also does not hurt it. Step 7 - Install other removed parts For everything else, install is the reverse of removal. Unscrew all the Pan bolts.
If not, on the left side of the steering wheel use the toggle button to scroll to the settings menu. Axle service interval 30,000 miles or 24 months according to Haynes. Do so at your own risk! I started at the bottom, moved up the sides, and finished at the top bolt. Siphon fluid out of your bottles of 75W90 until it drips out of the fill hole. By round robin, I mean similar to lug nuts. If the problem is lack of heat not a physical leak , the problem… The heater core is difficult to change on the Ford trucks.
When most of the fluid has run out pry the cover off the axle. Again what oil is recommended. Like the rear differential, start by removing the fill plug. It's really tight getting the cover out but it will fit. It is primarily intended for Ford F-150 trucks but most likely also applies to other Ford models and years.