QU40236 Dana 25, Dana 27, Dana 30 Differential Cover Gasket

QU40236 Dana 25, Dana 27, and Dana 30 Differential Cover Gasket for all Dana 25, Dana 27, and Dana 30 beam type axles from 1941 to current. Can be used instead of or in conjunction with RTV sealant. Genuine Dana gasket is precision cut from high grade, crush resistant gasket material with clean die cuts specifically for the Dana 25 to Dana 30 series axles. USA Made.

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
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 QU40236 Dana 25/Dana 27/Dana 30 Diff Cover Gaskets:
QU42027 Dana 25/Dana 27/Dana 30 Reusable Diff Cover Gasket
S82194 RTV Sealant

Tech Note 3: 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