Forgot to mention, this trick is NOT a fast fix! After you add the Brake Fluid you need to run the machine back & forth to mix the fluids and then let it sit overnight so the seals can swell. The add the Motor Honey to the gear oil & run it back & forth a few times to get it mixed & thicken it. Then flush with your solvent. - I did this on a CAT D-9 that was in swampy ground & we couldn't get a Low-Boy anywhere near it.