I have a 9c1 rear that i was wondering would it bolt up directly to rms?are the two rears the same length? Any help will be appreciated thanx!
good info![From memory] I think the RMS uses the standard sedan axle. The 9C1 axle is a little narrower. It is not a big difference, but if you are running larger rims/tires then it might be a concern. Pre-crash there was someone that put one in his RMS. He had SS wheels/tires and had clearance issues [tires occasionally rubbing on the inside of the fender wells]. He put in spacers and it was good enough.
- The axle mounts are the same.
- The disc brakes will swap directly over to your RMS axle.
- If already have posi (and it works), the 9C1 posi is the same unit. [There is a market for good used posi's if you decide to get rid of either or just keep it for when (not IF) your posi goes out.]
- There is not much difference between 2.93 and 3.08 to justify the cost of swapping the internals. [If you have 2.72 gear, it MIGHT be worth it.]
-If you go to the 3.08 gears, your speedo will be off a little. It requires a PCM flash/tune to correct it. [LOTS of advatages in doing this, if you have not done so already.]
If you have the clearance between the inside of the wheel wells and the tires, then its your call whether to swap the whole axle or just pieces.