Moroso Trans Pan Gasket: Sealant Or Not?

The Moroso Trans Pan Gasket is a gasket used for automotive transmissions. It is manufactured from 40 durometer rubber that is vulcanized to a rigid steel frame. This gasket does not require any sealant, which allows for quick removal and installation of transmission pans. Gaskets with sealant can be difficult to remove and may not last as long as the Moroso gasket. This is because the rubber/steel design outlasts cork composites, providing years of dependable service.

Moroso gasket reviews on Amazon

Moroso 93020 Gasket, V/Cover, SBC

This gasket has 4.5 out of 5 stars on Amazon, with 37 ratings. It is manufactured from 40 durometer rubber, moulded over and vulcanized to a rigid steel frame. It will not leak, blow out or get sucked in like stock or inferior-quality aftermarket gaskets. The superior quality silicone/steel gaskets outlast cork and rubber composite designs, providing years of dependable service, especially when constantly removing and reinstalling valve covers.

One reviewer says that the gaskets will not get distorted and can be reused, giving the product 5 out of 5 stars. Another reviewer mentions that the gasket is easy to install and works great, also giving the product 5 out of 5 stars.

Moroso Gasket, A/C Base, 5 1/8 IN. Necks

This gasket has 4.5 out of 5 stars on Amazon, with 154 ratings. Customers like the fit, seal, quality and performance of the gasket. They mention that it squishes nicely, works perfectly for their application and that it's reusable. One reviewer says that the gasket fits their 5.7 TBI unit spacer perfectly, giving the product 5 out of 5 stars. Another reviewer mentions that the gasket seals their carburettor perfectly and is better than other gaskets made out of cardboard, also giving the product 5 out of 5 stars.

Moroso 27293 Oil Pan Gasket for Ford and International Diesel 7.3L

This gasket has 4.6 out of 5 stars on Amazon, with 471 ratings. Customers like the quality, fit, and value of the auto part. One reviewer says that the gasket is amazing and they now have no oil leaks, giving the product 5 out of 5 stars. Another reviewer mentions that the gasket is of high quality and does not leak, also giving the product 5 out of 5 stars.

Moroso Gasket Trans, Powerglide, (93100)

This gasket has 4.5 out of 5 stars on Amazon, with 73 ratings. It is manufactured from 40 durometer rubber that is vulcanized to a rigid steel frame. The gasket requires no sealant, which allows for quick removal and installation of transmission pans. One reviewer says that the gasket worked perfectly and fixed their leak, giving the product 5 out of 5 stars. Another reviewer mentions that it is a great quality gasket and the only one that worked for them, also giving the product 5 out of 5 stars.

Moroso - 93104 Gasket, Trans, GM 4L60E, 700R4

This gasket has 4.4 out of 5 stars on Amazon, with 161 ratings. Customers like the quality of the gasket. They mention that it is strong, durable, and impressive. One reviewer says that the gasket fits their trans pan perfectly, giving the product 5 out of 5 stars. Another reviewer mentions that the gasket is well worth the money and has built-in spacers to prevent over-tightening and leaks, also giving the product 5 out of 5 stars.

Gaskets and sealants for different car models

Gaskets and seals are essential components in cars, designed to prevent leaks that can damage the vehicle's performance. The type of gasket used depends on the age of the car. Older cars may use cork or thin metal gaskets, while modern vehicles often feature carbon gaskets. Seals, on the other hand, are typically made of high-grade flexible rubber and are placed between rotating engine parts.

When it comes to transmission pan gaskets, some models, such as the Moroso Gasket, Trans, GM Turbo 350, do not require additional sealants. This particular gasket is manufactured from 40 durometer rubber that is vulcanized to a rigid steel frame, providing a durable and leak-proof seal. The rubber-steel composition is designed to outlast cork gaskets and facilitate quick removal and installation of transmission pans.

Other gasket models may require the use of sealants, and it is always important to refer to the manufacturer's instructions. Gaskets that do require sealants include those made of cardboard, thin paper, cork, rubber, or composite materials. The type of sealant needed will depend on the temperature and pressure conditions the gasket will be subjected to.

For example, the Permatex Ultra Black sealant is suitable for use with differential housing covers, oil pans, valve covers, and any surfaces exposed to oil. It can maintain its sealing qualities between 65 and 500 degrees Fahrenheit. On the other hand, the Permatex Aviation Form-A-Gasket is suitable for adhering cork, paper, or rubber gaskets to vertical or horizontal surfaces and can resist grease, gas, and oil. It dries slowly, allowing for easy assembly.

In summary, while some gaskets like the Moroso Trans pan gasket do not require additional sealants, others may need them to ensure a proper seal. It is important to consider the specific requirements of your car model and choose the appropriate gasket and sealant to maintain the performance and longevity of your vehicle.

Tips for installing a transmission pan gasket

Step 1: Drain the Transmission Fluid

Drain the transmission fluid either through the drain plug or by loosening the pan. Place a drain pan beneath the transmission oil pan to catch the fluid.

Step 2: Remove the Old Gasket

Loosen and remove the bolts around the transmission pan, except for the corner bolts. Allow the rest of the fluid to drain, then use a small, flat screwdriver to separate the oil pan from the transmission case.

Step 3: Clean the Mating Surfaces

Use a gasket scraper to remove the old transmission oil pan gasket from the pan and the transmission. Clean the mating surfaces thoroughly.

Step 4: Check the Old Transmission Pan for Flatness

It is important to ensure that your transmission pan has a flat mating surface before reinstalling it. Older thin pans can warp around the bolt holes, and if you had to pry the pan to remove it, it may have bent or marred edges.

Step 5: Install the New Gasket and Pan

Place the new transmission pan gasket on the pan and lift the pan into place. Be aware that most transmission pans are not symmetrical, meaning the gasket will only fit one way. You can use a gasket adhesive to keep the gasket in place, but do not use a gasket sealer as fragments can be ingested by the transmission's internals.

Step 6: Torque the Bolts

Replace the bolts on the transmission oil pan, working in a star pattern from the corners to keep the pan from cocking. Do not over-tighten these bolts, as the metal of the pan will distort and allow fluid to leak out.

Step 7: Refill the Transmission Fluid

Locate and remove the transmission dipstick. Place a funnel into the dipstick tube and refill the transmission with the recommended fluid. Be sure to use the correct brand and formulation of fluid as recommended by the manufacturer.

Step 8: Test the Transmission

Start the engine and shift through the gears several times. Allow the transmission to go into gear before shifting into the next gear. Once the engine and transmission have warmed up, check the fluid level with the engine running and the vehicle parked on a level surface. Do not overfill the transmission.

Additional Tips:

• Always remember to collect and properly dispose of your old transmission fluid. Many local auto parts stores have oil recycling programs and will take your old fluid for free.
• There may be more than one type or brand of gasket available for your transmission. Do your research and see which will work best for your application. Rubber-coated metal gaskets or properly formed liquid gaskets tend to have the best long-term seals.
• If your transmission has a drain plug, consider getting a new gasket or washer for the drain plug to prevent future leaks.
• Before reinstalling the transmission pan, check the old fluid for any signs of contamination or damage to internal transmission parts. Healthy fluid should be clean and red. Pink or milky fluid may indicate water or coolant contamination, while dark or burnt-smelling fluid can indicate clutch pack damage.

Pros and cons of using sealants

The Moroso Trans Pan Gasket does not require the use of a sealant. This is because the gasket is made from 40 durometer rubber that is vulcanized to a rigid steel frame, which provides a strong seal on its own. In fact, using a sealant with this gasket could make future replacements more difficult.

Pros of Using Sealants with Gaskets:

• Sealants can be helpful when used alongside solid gaskets in certain cases, such as when a flange is very uneven and sealant can help fill any gaps.
• Gasket sealants can make cheaper gasket materials more robust, increasing adhesion and resistance to chemicals and water.
• Automotive applications commonly use gasket sealants alongside solid gaskets when repairing older parts.

Cons of Using Sealants with Gaskets:

• Using a sealant with a solid gasket is often unnecessary and can make replacement of the gasket or old sealant much more difficult.
• Applying sealant to delicate flanges, such as aluminium, can be a challenge to remove, leaving a pitted and dented surface.
• Using too much sealant can be problematic, although a general rule is that only a tiny amount is needed, skimmed over a surface to fill any slight indents.

Alternatives to Moroso gaskets

Moroso manufactures a wide range of gaskets, including transmission pan gaskets, oil pan gaskets, and valve cover gaskets. These gaskets are made from 40 durometer rubber that is vulcanized to a rigid steel frame, providing an extra-strength design that will not leak, blow out, or fail.

If you are specifically looking for alternatives to Moroso transmission pan gaskets, there are several other brands that offer similar products. For example:

• Lube Locker offers transmission pan gaskets and filters, available on Amazon.
• Assault Racing Products offers a GM/Chevy Turbo 350 Hydramatic Silicone Transmission Pan Gasket, also available on Amazon.
• Racing Power Company offers a polished aluminum transmission pan, which may include a gasket, available on Amazon.

Additionally, if you are looking for a gasket that fits a specific transmission, such as the GM Turbo 350 or the Ford C6, you can find gaskets from other brands like Felpro at local automotive stores or online retailers.

It is important to note that when choosing an alternative gasket, you should ensure that it is compatible with your specific transmission and vehicle. Always verify the correct part number and fitment before purchasing.

Frequently asked questions