Mounting Flange differences

[CTX-SLPR]

Howdy,

Anyone know if a GT40 and a GT40R differ in anyway but the ball bearings?

Thanks,

 

[chevyII]

I would say no but they are both 4 bolt and I think don at PTE said they might make the R in 3 bolt??

 

[CTX-SLPR]

I would say no but they are both 4 bolt and I think don at PTE said they might make the R in 3 bolt??

I think they have a challenge just keeping it in stock in 4 bolt form as Garrett appearantly isn't makeing them very fast.