





m9 vs 9"
let me know what you think
thanks
cliff
Last edited by ssvert99; Nov 2, 2007 at 01:11 PM.
thanks
cliff
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Do you have a pic of the front mount/cross member area?
Do you have a pic of the front mount/cross member area?





The M9 is 3,025.00 with the same thing plus a torque arm which is a difference of 775.00
If you have a torque arm you're paying 775.00 extra, if you don't have a torque arm it's not that bad of a deal because a quality torque arm like madman's setup will cost you about 700.00, which is a 75.00 difference and you factor in the lighter fabricated housing, you're really only paying 75.00 for a housing upgrade.
However like a few people have said it may not be legal in stock type classes requiring factory bolt on locations.
I am not sure, but it is a point to consider.
The M9 has more drive shaft tunnel clearance, but there are ways to move over stock type torque arms on the rear end as well, but you have to do things to make it happen, the M9 is ready to go.
The 9" will take many torque arms, the M9 has one torque arm, if you want a shorter style, guess what too bad.
As far as power I read there is no reason to go with an M9 if you don't make over 700 hp.
Both rear ends will handle high power if braced and setup right.
Before the Fab9, M9 even existed guys were running back braced 9" with 40 spline axles, spool and pro gears in cars with close to and even over 2,000+ hp at over 3,000 pounds.
Ever hear of pro street?
Can you run 1,500 hp in a 9", Yes. Does my car make 1,500 hp, no, do 1% of the people on ls1tech make that, probably not, so I don't see why that's an issue.
My take on it, if you have a torque arm go with a 9".
If you don't have a torque arm and don't have to worry about legality in any racing classes go with the M9.
I know some other fabricators offer M9 style (fabbed housings) with short or long torque arms, but you said M9 vs. 9" so I didn't mention it.





