QU42027 Dana 25, Dana 27, Dana 30 Reusable Differential Cover Gasket

QU42027 Dana 25, Dana 27, Dana 30 Reusable Diff Cover Gasket by Spicer is a steel core performance gasket that can be reused multiple times. These Teflon® coated gaskets feature a no re-torque design and will save time when working on your diff by eliminating the need to clean the metal mating surfaces of old gasket material plus you do not have to wait hours for a sealant to cure. Just install the gasket and cover, then fill your diff with oil! Use on 1941-1971 Dana 25, Dana 27, and 1967-current Dana 30 beam type front or rear axles.

Need More Info? Use the handy Links below to access over 40 years of Dan's product and vehicle specific Tech Notes to easily get the information you need for your vehicle's repair, maintenance, or upgrade project!

Dan the Gear Man® Tech Notes:
History
Matching Parts
No RTV Sealant
Axle Model Gaskets
Applications

Tech Note 1: History
Starting in the 1970's, Dana-Spicer switched from light gauge steel covers with embossed mating flanges to heavy gauge covers with flat mating flanges. Gaskets were used to seal the early covers, but the late covers used RTV sealant instead of gaskets. Due to the Design of the older covers, you MUST use a cut gasket for a leak proof seal between the cover and diff housing. With the late, flat flange covers, you can use either RTV or a cut gasket or even a combination of the gasket and a thin film of RTV sealant. The advantage of RTV is that properly installed on clean dry surfaces and using a grade of RTV that is resistant to gear lubricants (see S82194 RTV), it will not leak. The disadvantage is the covers sealed with RTV are hard to remove at the next service interval and once removed, the RTV residue stuck to the mating flanges must be laboriously cleaned off both surfaces. Many people now use a cut gasket with a thin bead of RTV on each side which simplifies removal and cleaning but still provides a leak-proof seal.

Tech Note 2: Matching Parts
Matching Parts for QU42027 Dana 25/Dana 27/Dana 30 Reusable Diff Cover Gaskets:
QU40236 Dana 25/Dana 27/Dana 30 Diff Cover Gasket
S82194 RTV Sealant

Tech Note 3: No RTV Sealant
QU42027 Dana 25, Dana 27, Dana 30 Reusable Gasket is manufactured by Dana-Spicer. These excellent gaskets feature a woven steel core, non-asbestos facing, and are coated with Teflon® so the gasket does not stick to your axle housing or cover. Do NOT use RTV sealant with reusable gaskets!

Tech Note 4: Axle Model Gaskets

Applications
Specific vehicle applications for these gaskets are to numerous to mention.
This gasket can be used on on all Dana 25, Dana 27, and Dana 30 standard axles