Differential Cover Ford 10.25″/10.5″ 12 Bolts Rear Axle| SPELAB
Function
Protects the differential, seals the differential, stores differential fluid.
Fitment
1985-2014 Ford E-Series Van
2000-2005 Ford Excursion
2000-2010 Ford F-150
1985-2024 Ford F-250 Super Duty
1985-2024 Ford F-350 Super Duty
Note: The year and model may not guarantee compatibility. Please confirm whether the axle is Ford 10.25″/10.5″ 12 Bolts.
Innovative points
1. The external heat sink design increases the contact area between the differential cover and the surrounding air, enhancing heat dissipation performance.
2. The internal diversion groove design aligns with the direction of liquid flow in the differential gear's rotation, ensuring maximum flow rate for better lubrication.
3. The use of aluminum alloy material significantly improves cooling performance compared to the commonly used iron material. When comparing billet to cast products, billet items are often considered more durable and built for long-lasting performance.
4. An external observation mirror with a floating ball is used to monitor the oil level. Traditional observation mirrors in the market may darken over time, reducing visibility. Therefore, the floating ball allows us to monitor the oil level even if the mirror darkens.
5. The outside with black wrinkle paint providing rust resistance.
Specifications
FAQs
Q1: What vehicles is the SPELAB differential cover compatible with? A1: The SPELAB differential cover is compatible with 1986-present SuperDuty Trucks 2x4 & 4x4, including Ford F250, F350, E250, E350 with Single Rear Wheel (10.25"/10.5" 12-Bolts).
Q2: What materials is the SPELAB differential cover made of? A2: The SPELAB differential cover is made from A380 aluminum, offering superior strength and cooling performance.
Q3: How does the SPELAB differential cover improve cooling? A3: The cover features external cooling fins (534 sq. inches) and internal heat fins (120 sq. inches), ensuring optimal heat dissipation and enhanced cooling.
Q4: Does the differential cover come with installation hardware? A4: Yes, the SPELAB differential cover comes with 304 stainless steel hex flange mounting bolts for durable and easy installation.
Q5: How does the sight glass on the differential cover work? A5: The sight glass, sealed with a Viton O-ring, allows for easy monitoring of the oil level without removing the cover.
Q6: Is the differential cover resistant to rust and corrosion? A6: Yes, the cover has an anti-rust coating with a wrinkle paint finish that protects against corrosion.
Q7: Can I change the differential fluid without removing the cover? A7: Yes, the differential cover is designed to allow easy fluid replacement without the need to remove the cover.
Q8: What benefits does the directional fluid guide provide? A8: The directional fluid guide ensures comprehensive lubrication of the differential, reducing wear and extending its lifespan.
Q9: Is there a temperature monitoring option available with the differential cover? A9: Yes, the differential cover includes a 1/8 inch NPT sensor port to facilitate temperature monitoring.
Q10: How does the magnetic drain plug help? A10: The magnetic drain plug simplifies the oil change process by attracting metal particles, ensuring a cleaner differential.
I am very happy with my unpainted cast aluminum cover. I didn’t have any issues with fitment or hardware / sight glass installation. It looks great inside and out. I wish I would’ve taken a picture before reinstalling the spare tire.
2006 F250 (sterling 10.5)
C
Chad R Smith
Great product great price
Awesome product right down to the fasteners. I did the research before buying this one. It seemed to be the best build quality and the best price. Went on effortlessly and looks great
M
Michael Popovich
10.5 steerling diff cover
Great cover. Cheap mounting bolts and washers. No excuse for such small soft cheap mounting hardware
A
Anthony Tisbo
Great product
Easy install, make sure you buy some gasket sealer.
M
Michael Lavariere
Diff cover
Nice looking diff cover
J
John Harlin
Good product - better instructions.
In all I love it. The sight glass is great. Look is awesome. All I’d ask for is a recommended torque for the hardware as it is a hardware change and lap from a bolt to hex. We ended up finding what many used on a Facebook forum and from looking around the internet. Other than that great product.
P
Poncho
REAR DIFF COVER
BEST DIFF COVER FOR MY 2000 FORD EXCURSION LIMITED
Install was easy and straightforward. Everything lined up nice. Peace of mind knowing there are no worries about potential destroying my engine, due to a nut.
Highly recommend for 2009-14 F150 4x4 3.5 ecobeast!
Differential Cover For Ford 9.75″ 12 Bolts Rear Axle | SPELAB
06/22/2026
Eugene Hake
Good bang for buck
Installed myself at home took a little over a week for everything to show up, install went tough but that was the trucks fault parts were all good and the tunes run smooth, getting a little over 2 mpg average better fuel economy definitely worth the money.
Welds look solid and professional quality, I have not installed them yet but I did put them in place under truck to ensure length and thus far everything looks good. I will give an update after install and on the road with them
This is a really nice set up inexpensive but well-made. Make sure you use 1/4 inch drive and torque wrench, if you get the half socket 10mm and multi size extensions even better it’ll make getting those two back bolts easy
Intake Manifold for 2011–2019 Ford F250 F350 F450 F550 6.7L Powerstroke | SPELAB
06/08/2026
CP
EGR delete is mint
Makes truck breathe better and will definitely blow your y bridge out so do that while you’re in there looks great and fits up pretty good not perfect
Installed this SPELAB EGR Throttle Valve Delete on my 6.7 Cummins and the fitment was perfect. The kit was well made, installation was straightforward, and all the necessary parts were included. Everything lined up as it should and the truck runs great. Highly recommend for anyone looking for a quality replacement component.
I originally had the Banks Monster Ram intake with grid heater delete, and costed $1200. Recently I decided to give Spelab a try for their 3.5” pusher style intake with grid heater delete. Fraction of the price and performs the same. Only regret I have was my purchase of Banks.
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Shawn Plank
Heater element
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06/01/2026
Isaac Wood
Good product fast sipping was not that bad of a job
Worry-Free Purchase
06/01/2026
Cody Osborne
Works Great
Install was easy and straightforward. Everything lined up nice. Peace of mind knowing there are no worries about potential destroying my engine, due to a nut.
Highly recommend for 2009-14 F150 4x4 3.5 ecobeast!
Differential Cover For Ford 9.75″ 12 Bolts Rear Axle | SPELAB
Eugene Hake
Good bang for buck
Installed myself at home took a little over a week for everything to show up, install went tough but that was the trucks fault parts were all good and the tunes run smooth, getting a little over 2 mpg average better fuel economy definitely worth the money.