yeah well just for everyones information my allison wont hold the 90 hp tune without tow haul and when in towhaul it holds it about 90% of the time so i decided i bought a LBZ with a weak allison. it is back to stock now because this tranny has to last me 2 more years and i hope it holds!!!! (but after i did change the fuel filter it helped allot suprisingly, but not enough unfortunatly)

NOTE: and when i say hold the 90hp i mean at WOT not just daily driving because it was fine under daily driving just when i was getting into WOT

try changing your transmission oil and transmission spin on filter:tu:

do you really think that will do this trick? because i am getting horrible MPG (calculated long hand) without the chip in and my EGR light is really pissing me off.... is there any way to look at my tranny fluid and tell if its due for a change? its still got a nice red color to it. and is there any good signs of a tranny going bad on these 6 speeds? :argh:

shift flares are usually a sign, and a lot of debris on the magnet on the spin on filter is probably not too good either

Allison recommends changing the fluid every so often depending on the fluid you use, if you use Transynd the change intervals double

shift flares... as in before everyshift it will almost rev freely and then grab the next gear? and i have only had the truck for not even 4000 miles and i know all the workk that has been done on it is from a dealer. i did swap the oil to synthetic and from the "looks" and smell of the tranny fluid it seams fine with no dark colors or burnt smell. maybe it would just be a good idea for me to get some tranny fluid and a filter and have it flushed? do you have anything against amsoil? reason being i filled the engine oil with some amsoil and wouldnt mind doing it for the tranny also. will amzoil have double the change intervals like transynd? or is transynd my best bet

yep thats a shift flare
As for fluid I dont know anything about the amsoil transmission fluid, thats the problem, its not tested by allison to be approved for their transmissions, Transynd is what allison sells itself and recommends for a syn

Amsoil may or may not be the same, I just can't say because I don't know

Shift flares are a sign of weak clutches, you should probably start saving for a trans rebuild soon, the allison is trying to keep itself from being hurt

I'm really no expert on this kind of stuff:td:

from my understanding my truck does not have flaring shifts.. i wish i could take a video from my droid pro phone and post the video on here some how to show how it shifts but i dont really know how to go about that.

if you have a youtube account you should be able to upload directly to youtube from your android

i believe i do have one :tu:. not sure how to go about doing that though :humm: