tra spring experts???

[Insaneboltrounder/sjohns]

I bought a primary cover to fit my cat clutch , it allows the use of the tra spring ( better shifting they say). My question is , i think doo measures their spring rates than pol and cat. The spring im currently using with the cat cover is a 120/300. If i buy a doo spring thats rated the same , will it really be the the same? thnx... hope that wasnt too confusing. sj

 

[winter brew]

Yep, a bit different. Don't use the LONG Doo springs, they will coil bind and break the cover.

 

[canucklehead]

Not exactly

If i buy a doo spring thats rated the same , will it really be the the same?

The spec sheets I have show AC and BRP rating spring forces at different measurements so to answer your question... no.