Just be careful, like Tylerb59 said, it the transmission has problems and needs to be replaced you know most dealers will try to play it off as being caused somehow by you putting in a non stock shifter.
Of course a new shifter is next on my list of mods
If I start having tranny problems I'll stick the stock one back on and then take it to the dealer
Just as a heads up here is what Tremec has to say about using aftermarket shifters with shift stops (which they all have)
Tremec Transmissions
Service Bulletin 03.01
Subject:
Aftermarket Shifter Stops
Transmission Models Affected:
All
Severe damage may be caused by installing an aftermarket shifter with "shift stops" on any TREMEC transmission. All TREMEC transmissions are designed and manufactured with built-in shift stops to prevent over shifting. Therefore; shift stops on aftermarket shifters are totally unnecessary when used on a TREMEC transmission. TREMEC "TR series" transmissions have multiple shift rails with shift stops on the gearing. TREMEC "T series" transmissions have a single shift rail system with stops built into the guide plate.
When installing an aftermarket shifter on a TREMEC transmission it is best to remove the shift stops to avoid miss adjustment, and the potential of the screws vibrating lose. A misadjusted shift stop can cause an under-shift, which may lead to a gear jump-out situation. If the transmission jumps out of gear, the shift fork can be bent causing permanent damage to the transmission. Shift forks can also be damaged by "clash shifting". A clash is caused by a missed shift.
Neither an "under-shift", nor a "clash shift" can be prevented by shift stops. TREMEC shift forks are designed to take loads up to 1,000 lbs. However, a gear jump-out may well exceed 1,000 lbs. of force, which may result in a permanently damaged transmission.