Originally Posted by SaleenFiend
The 8.8s and 9s are pretty much the same rear end give or take some here and there. some people just choose the 9 over the 8.8 based on mere fact as it's somewhat rare (or uncommon) and still stronger. Nobody has a real nead for the 9 over the 8 unless you have a serious launching car.
the 8.8 and the nine inch are completely different in every way.
the 9in uses a third member or "center chunk" with spanners to adjust backlash.
where the 8.8 has a carrier style setup and uses shims to adjust backlash.
The 9in is ten times stronger than a 8.8 and great for racers cause if you have other complete center chunks with different gear ratios. you can change your gear ratio at the track on the ground in about 30 minutes with out and special.
The downfall to the 9in is that it's heavier than the 8.8 and it robs more horsepower out of the drivetrain.
A lot of racers are starting to use the Dana 60. As its lighter and robs less power than the 9in, and almost as strong as the 9in.
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