Question on transmission blankets

[rocketman]

Does anyone know how long a transmission blanket is certified for? I tried to find this in the NHRA rule book but was unable too.

 

[twostep]

Could be wrong, but I don't believe there's a set time, other than common sense that tells you to replace it in the event of a catastrophic transmission/converter failure.

 

[goat]

2 years

 

[Muddy]

2 years. Date on SFI tag.