Suncoast GMax install tomorrow!

[JShe8918]

Going to pick it up at 2 today!!!

 

[DuramaxPowered]

Time's up!!!!!!!........Let's hear some results

 

[JShe8918]

The results i am SCARED! I think i made a booboo..... It shifts smooth under 25% but anything more and it shifts smooth EXCEPT 3-4 & 4-5 shifts. Those two shift it shifts so hard the truck jerks and feels like the truck is faling apart. Think of a kid bouncing in a rental jumpy thing... It is bad bad bad... Either i didn't do something right or the tranny builder is going to be paying for it to be built by someone else.

 

[WolfLMM]

Fast learn:thumb: Resetting the taps caused my truck to shift like trash also.

 

[TrentNell]

Give it time to learn , lots of stop and go driving , Like Wolf said if it isnt learned i dont care who builds it it shifts pretty poor , if after a few days of letting it learn it doesn't clean up then go from there .

 

[paint94979]

If you have it in there now you can also try an 01 TCM...

 

[BoiseRob]

Who did the install?

 

[IOWA LLY]

Dont beat on it until the shifts smooth out. You need to work your way up in throttle position slowly. Like has been said. Put it in fast learn and take your time getting it to learn.

 

[fishsmith]

Mine did the same thing when it was built. Like the others said just keep the power low till it gets to shifting better. An 01 tcm tune helped mine a good bit.

 

[LWATSON]

Mine also shifted like this, when the converter locked the truck joulted foreward really hard even under light throttle.

 

[JShe8918]

Thanks guys. It really helps me.

 

[Mike L.]

Builder should have broken in the trans before delivery as much as possible. This sounds more like a trim valve ball out of place or a missing spring.

 

[MMLMM]

Builder should have broken in the trans before delivery as much as possible. This sounds more like a trim valve ball out of place or a missing spring.

X2, When I drove off in my truck it wasnt harsh at all. Felt very nice, and felt the real the power of my tune. no harsh shifts, no flaring, nothing real firm. all around good the second I left the shop. Also didnt seem like it really even need time to learn anything.