CVs have a hard life, especially the inboard CVs aft of the engine. Some are directly above the exhaust on 914 cars, where heat, road grit, and old boot failure can turn cheap grease into clay long before the joint is actually worn out. That is not good, because once the grease breaks down, the joint has to carry a load with less protection between the cage, balls, and races.
Lubro Moly LM47 CV Joint Grease is a good choice when repacking Porsche 914, 914-6, 911, and 912 CV joints during axle service, boot replacement, or rear suspension work. Be sure to use good grease. CV joints are unpleasant enough to service that you really do not want to be doing the job again a month later because the wrong grease was used or the joint was under-packed.
Note: These are 100g tubes. That is roughly 3.5 ounces. The factory manual recommends 90g, or 3.1 oz., for the 914, and this one is odd: 70g, or 2.5 oz., for the 914-6 and 911 joint. If you are going by that, you will need 4 tubes for the 914 and 3 for a 914-6 or 911. The reason we think that's odd is that the 914-6 joint is the exact same size as the 914 joint, and the 911 joint is much larger.
What do we do?: 1 tube per CV works perfectly.
Technical Details
- Manufacturer: Lubro Moly
- Product: CV Joint Grease
- Reference: LM47
- Tube size: 100g
- Common service use: CV joint packing, CV boot replacement, and axle service
- Application range: Porsche 914, 914-6, 911, and 912 CV joint service
Fitment & Compatibility
This grease is used for serviceable Porsche CV joints where the joint is being cleaned, inspected, and repacked. It is commonly used during rear axle work on Porsche 914/914-6, 911, and 912 models, especially when replacing torn CV boots or refreshing old axle assemblies.
Before reassembly, inspect the CV joint for pitting, cracked cages, heavy galling, or deep wear in the races. Fresh grease is not a fix for a damaged joint, but it is the right finishing step when the joint is still serviceable and ready to go back together.
PMB Performance has more than 20 years of Porsche brake, suspension, axle, and restoration experience. If you are unsure whether to repack or replace your CV joints, send us your model details and axle setup before ordering.