Well it happened l limped her tonight going up a hill on cruise control going up a 15% grade hill on the hot tune going 65 she jumped in and out of OD before I could turn the cruise off and slammed back into OD HARD then felt like it slipped into 4th revving up and cel came on so what do do now I cleared the code and put it on the lowest tune

 

So guys I have a question how hurt is my trans from limping it?

 

The 5 speeds are pritty picky when it come to how much clutch slip is aloud before limp mode. And once you burn the clutchs it will slip much easier and limp more often. It is usually a slippery down hill slope from here. Towing can be problematic

I would keep it on the lowest hp, or stock Setting and be careful with the 6th gear and tcc. Let it downshift before mashing the peddle.

When i first limped my 5 speed it was only about 3 months before it started acting up, not engaging gears, sticking in one gear and going into limp mode much easier. Of course i wasn't being being to smart about how to treat it. then i got it built by Mike L and haven't been able to limp it no matter how hard i stomped it.

I would start saving up if i was you.

Jason

 

yeah ive been babying it haha

 

I'm new to the d max and have been in the cummins crowd for a while. I have a bone stock 02 qcsb 4x4 what are the must do's at minimum that a guy can do in the drive way to help these things out. On the dodge stuff theres a few VB mods and minor shift kit stuff that really help them live, is there a sticky anywhere with a guide to what order and what's actually necessary vs overkill in reality. I know there's gobs upon gobs of info out here on the interweb but I'd like to get the most realistic and solid info I can. Thanks for any info

 

there isn't really anything you can do in your drive way that will help them live longer other then basic maintenance.

one of the weakest links of the LB7 horse power wise is the transmission. the 6 speed allison can benefit from a Transgo Jr kit but it is not practical for the 5 speed as it requires dropping the transmission and doing some internal work. might as well build it if you are going that far.

the LB7 injectors are prone to quick failure with bad fuel so good fuel filters are a plus. other then that just make sure you have some good tuning and be friendly to 5th gear and it will last a long time

 

I have a fass from my cummins I'm ordering the kit to switch it to the duramax so filtering shouldnt be a problem. I'm all stock right now but like my dodge there was all kinds of different things you could do with the trans to mod it without having to tear it out. I've got a cone style filter with a straight intake pipe kind of a diy intake, and have been looking for something to add some power, durability or longevity amd start building this thing. I built my dodge up to around the 550-600 hp mark and thats what I plan to do with this one I'm just not finding nearly the info or reasoning behind much of what people are saying. It's a lot different

 

in stock form the duramax is pretty good.

the stock intake can support more then 500 HP, no ned to upgrade that yet. the bottom end usually safe to around 600ish HP, at that HP a lift pump is normally required along with a turbo upgrade.

to keep the injector pulse width down at high HP larger injectors would be beneficial.

of course you cant forget the transmission. normally only capable of 60 to 90 HP above stock. get it fully built if you want to run in that HP range

 

Ok it seems like with these duramax trucks really all that's talked about is tuning a couple different turbos , injectors and trans building . Just seems too simple compared to the ford's and cummins. Searching for parts for this d max ot doesn't come up with alot. You search for or cummins and uou can buy parts for days. So I guess I'll get me a nice exhaust coming and a good tuner and see how this thing does. Thanks for the input and help.