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  #1  
Old 06-10-2012
andy109r  andy109r is offline
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Default transmission flash

does anybody know where is the best place in brisbane to get the tranny flahed for the 5th gear on a wj v8. and is it worth it ?
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Old 08-10-2012
mek67j  mek67j is offline
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Only Jeep can do it. Its actually an additional lower ratio 2nd and kicks in on downshifts.
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Old 08-10-2012
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Nah, they all have the two 2nd gear options, this gives a higher overdrive.
I reckon its worth it but it depends on how much dealer charges.Worth calling around as prices vary.
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Old 08-10-2012
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Really? Flashing the computer that controls the gearbox will give a higher ratio overdrive? I would have though this was mechanical and all the reflash could do was to change what speed or load the gear changes occur at.
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Old 08-10-2012
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The trans has avail 5 speeds (6 if you include the two almost same second gear ratios) but early models only used 4 speeds, this was purely a programming thing.
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  #6  
Old 09-10-2012
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Hanna  Hanna is offline
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Correct as usual Turbo - when I reflashed mine it dropped the revs from ~2000RPM @ 100km/h to ~1750RPM @ 100km/h.

Definitely worth it for a little extra highway economy.
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Old 09-10-2012
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It could well be reflashed already. It's hard to detect the extra gear change. Check your RPM at 100km/h as per Hannah's post.
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