10023539 Differential Cover (Ford 9.75), 1 Pack

It's a nice, super heavy-duty cover, and it has the drain and fill plugs, which was the reason for the purchase. It makes servicing easy now. FYI, my research led me to believe that unlifted or small lifted trucks (2.5" max) should fill fluid to the bottom fill plug. However, I had to fill to the top of the fill plug because it started making noise and was obviously not filled enough. It took 5.5 quarts of fluid total. I have Bilstein level, 2.1" in the front, no lift or blocks on the back. The cover looks great and is a nice/functional upgrade. I also used the recommended LubeLocker for 9.75" Differential Cover Gasket and (12) 5/16-18X3/4 Stainless Steel Hex Serrated Flange Screws, Flange Bolts 304. Installed on a 2011 F150 Platinum: 100k miles. Old fluid was clean, and the rear end looked perfect inside —no shavings or sludge.

The cover has excellent quality and looks great. It fits well and is easy to install. I’ve been using it for about a year now without any issues. The drain plugs make charging the fluid very convenient. I highly recommend it. . No need to pay twice as much just for a different tag.

Good fit and no leaks for 2013 F150

I purchased this differential cover to replace the mag-hytec branded one (watch the Gale Banks video about why those covers arent the best!) while I was doing some diff maintenance anyways. This fits any F150 with a 9.75 rear end. Check your truck before you order this because while MOST trucks come with a 9.75 rear end, some come with regular 8.8s and some come with whats called "SUPER 8.8s" . As far as the quality of it? Its great. Its heavier duty than the stock one and makes fluid changes a breeze. The gasket it comes with is okay, but I ended up buying a lube locker brand gasket instead. I have heard of people having issues with the supplied bolts but I did not! Overall this is a nice bit of kit, adds a bit of pop to your trucks rear end and makes fluid changes super easy. Highly recommended you buy this in conjunction with your next fluid change. Oh and as I said this is the EXACT same cover as the Ford Performance branded one (M-4033-F975) just with different sticker on the cover. If you want to save 100 bucks get this one!

Nice quality part! Heavy cast. Some people complain about the supplied bolts and gasket.I used a thin coat of permatex ultra grey on both sides of the gasket installed cover with supplied bolts.I torqued down the cover at spec no issues with the bolts.Let everything sit for a hr and filled with 4 bags of Valvoline 75w140 synthetic. Drove 24 hrs later and no leaks. It’s nice looking and also nice to have the fill holes and drain plug o. Back of the cover. 1 star down because the gasket isn’t the best quality I’m also a mechanic with over 30 year experience.

This thing is Heavy AF - Solid well built and no machining slop. Fit right on no issues. Since I read the other reviews and they stated there were issues with not being able to torque the supplied bolts down I purchased new Grade 8 bolts: (copy and paste this) 5/16-18 x 3/4" (15 PCS) Flanged Hex Head Bolts, Flange Washer Head Hexagon Screws, 18-8 Stainless Steel (304), Plain Finish, Full Thread It does increase the diff capacity 1+ qts so plan ahead when buying fluid. I'm not a professional - but I say there is no reason to pay $100 extra for a larger name brand diff cover.

Cover fit great. I don't know if I'll ever need to change the fluid again, but if so it will be super easy next time....also looks great!

This is a pretty cost effective upgrade if you plan on changing your rear differential fluid frequently. This is the Ford performance diff cover for a lot cheaper, and without the Ford Badge. I used all but 2 of the stock bolts to install, and the included gasket. Installed to 30 ft lbs on each bolt, filled and went out for a test ride. When I got back i checked the torque, and some needed a couple more turns. Went for another test ride, and checked again, and everything was set. I then went for one more 10 minute ride and checked again. So far I haven't had any issues with the included gasket (people are saying it's no good, but maybe they're not re-checking the torque after a couple test rides). It did come a bit bend up, but this cover is so heavy that I used it to straighten it out on a flat surface. Overall I'm glad I purchased this. It'll make future fluid changes easy.

Perfecto para diferencial 9.75", con 12 tornillos. Esta tapa esta mucho mas reforzada que la original. Pesa bastantito. Ademas, tiene el plug para desasolve en la parte inferior, y 2 tapones para rellenado. Ademas, la tapa ya trae su empaque. No tienes que usar silicon gris (especial para diferenciales). Es solo ponerlo con la tapa, rellenar y ya, a poner a funcionar el vehiculo. Si no quieres usar el empaque que ya trae, puedes usar el Permatex 81182, formador de juntas gris. Aceite: El manual de servicio de la agencia Ford indica que el aceite que le pongas debe ser sintetico. El original es el Motorcraft SAE 75W-140, lubricante sintetico eje trasero En mi caso, encontre aqui en Amazon el Valvoline SynPower SAE 75W-140 a muy buen precio. Este aceite te sirve si el diferencial es: a) de tipo convencional abierto b) de tipo lock-diferencial c) de tipo limited slip, porque este aceite ya trae el aditivo. Este aceite cumple con la especificacion Ford WSL-M2C-192A / GL-5 para diferenciales Se necesitan 2.8 litros en total. Tornillos: La tapa incluye los 12 tornillos. Lo unico, es que el diferencial usa 3 tornillos especiales, ya que se requieren para fijar creo unas mangueritas del ABS. Entonces tuve que usar esos y los 9 tornillos nuevos. Los tornillos se quitan con dado 1/2" : no son ni 12 mm ni 13 mm. Torques segun el manual de servicio de la agencia Ford son: -Tapon de relleno del diferencial: 30 Nm o 22 lb-ft. -Tornillos de la tapa del diferencial: 45 Nm o 33 lb-ft. *OJO*: Este torque es solo si usas los tornillos originales ya que terminan casi en punta. Los que trae la tapa son normales, y sí requieren menos torque.

Was not able to find a replacement rear differential cover for a 2002 Ford Expedition to replace the original cover that had rusted through. Local salvage yards said it was too old. While this cover is more than was needed to stop the oil leaks, it fits perfectly. Used provided gasket and bolts without any more leaks. Bolts torqued to 25 ft lbs. Seems to be a good product.

Fit on my 2014 F150 HD like a glove. My package arrived without a scratch. I installed it with a lubelocker gasket and reused the factory bolts. Torqed the cover bolts to 15 then 30 foot pounds, fallowed lubelockers toque order. The fill/drain plugs I toqued to 25 foot pounds. No leaks. Went the extra mile and painted the axle and leaf spings. Great spring project. Looks so good! At this price you cant go wrong.

Easy to install, makes the diff of the truck look great and makes future diff oil changes so much easier. The cover comes with gasket and new bolts. Also I received it ahead of projected delivery date.

I bought this for my 2015 F150. Fits perfectly. I used the supplied gasket and so far no leaks. I checked the Spicer website and apparently the supplied gasket is high performance. I’ll keep an eye on it but for now I’d say it’s was a good purchase. I also removed the spare tire first for some extra room. I re used the factory hardware because I needed the bolts with the lugs for the brake line.