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JGC Limited 5.7L
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195 Posts
Discussion Starter · #1 ·
Has anyone upgraded their non Srt8 Transmission to a performance one?

I want to upgrade my transmission for things to come, anyone got any ideas?

Im a little clueless right now because I have heard several different things.

Can anyone offer a great link?
 

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2010 JEEP SRT8
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1,742 Posts
look into Sheridan transmissions. Both Sox & Escape (members here ) are running them. there's a thread about it ,but my phone is not cooperating atm. they have to be stout ,escapes " Punisher " is a monster !
 

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2006 WK Overland
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2,086 Posts
X2 ^^^. If I ever lunch mine, that's the route I am going. For now though I've foregone the DS tuner (which works better) on mine (modded similar to yours) and opted for the Superchips tune with the Advanced Trans. Tuning App., along with the Sonnax Line Pressure Booster. I feel I've got mine set up about as good as it can get for a stock 545RFE. I set all the upshifts (WOT and light throttle) so they are quite firm, and adjusted (lowered) the torque management appropriately. You wouldn't know it was basically a stock trans. One more thing....I think that if I have a problem it'll be with a diff. before the trans. goes.
 

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JGC Limited 5.7L
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195 Posts
Discussion Starter · #4 ·
Thx guys, Just ordered the stage 3 SheraDon performance transmission and a 2800 stall. Was told it will take about three weeks to get to me. I got this one because I plan to drop a supercharger in it in the near future. Ill keep everyone posted.
 
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