Can I use LS1 rotors on my LT1 rear? Also, I have the LS1 front brake upgrade. I'm going to be buying steel brake lines, should I buy the LT1 version or the LS1? Thanks.

 

LS1 and LT1 rear rotors are totally different, and NOT interchangable (LS1 rotors have a built-in "drum" for the parking brake).

As far as the front lines, I'd suspect you would need the lines for LS1 calipers, but maybe the LT1 lines would work? I'm not sure on that one.

edit: forgot to mention the main difference, which is the SIZE of the rotors. LS1 rotors are just about a full 12", whereas LT1 rotors are only around ~10.5" - 11" I think? (they're definitely quite a bit smaller though).

 

I thought the rears were the same size. I didn't know about the parking brake issue. The reason I ask about the LT/LS lines is that I think I remember reading that you could use the LT lines but had to change the banjo to a LS line? Aren't the LS lines shorter than the LT lines? I know I used the LS lines that came with the set up, but since they were rubber, I didn't worry about twisting them to fit right. I'm worried, that with the steel lines, I will not be able to bend them in place like I did with the prior ones.