Hello, is there a product that will stop a leak on a rear differential? As luck would have it the leak is by the U-joint (not the differential cover with the easy to repair gasket) that connects to the driveshaft and will be difficult for me to repair. 04 f150
Any suggestions would be greatly appreciated!
Thanks in advance!
You need to replace your pinion seal. It's best to take it to a mechanic, the pinion flange needs to be re-torqued to exact specifications before putting the driveshaft back on.
@justin-shepherd Thanks for the advice. So, there isn't a stop leak product that will possibly stop the leak?
Thanks in advance for your assistance!
Thanks for the advice. So, there isn't a stop leak product that will possibly stop the leak?
Thanks in advance for your assistance!
AT-205 may help, but that truck is 20 years old now, and if that pinion seal is ripped or torn, AT-205 won't do anything. AT-205 is just a band-aid, regardless. Just fix the $20 seal, and you won't need to deal with it again.
@justin-shepherd Thank you!
No problem! I don't mess with the front side of the differential, personally, there's a pinion bearing preload that must be restored precisely the way it was before you took the pinion seal out. Improperly restoring the preload can easily result in failure of the differential.