mark @danville performance (danville IN) is close by but IDK if they mess with conversions
fleece is somewhere near you as well
i had to pick this up in NW toledo area ~200 miles one way
8.1 to dmax 3500 HD GMT-400 body
- Thread starter malibu795
- Start date
mark @danville performance (danville IN) is close by but IDK if they mess with conversions
fleece is somewhere near you as well
i had to pick this up in NW toledo area ~200 miles one way
wow keep trying adam. NONE of what you just posted is correct.
LB7 and LLY definitely have different ECM's........
The harnesses are completely different........
you cant run a 6-speed TCM with an LB7/LLY ECM.........
wow keep trying adam. NONE of what you just posted is correct.
LB7 and LLY definitely have different ECM's........
The harnesses are completely different........
you cant run a 6-speed TCM with an LB7/LLY ECM.........
same as both LB7/LLY are delphi ECMs and harnesses are >SIMILAR<
LBZ/LMM are bosch
explain 6 speed swaps for the lb7/lly 5 speeds?
http://www.suncoastconverters.com/shop/gm-allison-5-6-speed-conversion/
So by your logic, an LT1 ECM in a 93 Caprice is "SIMILAR" to an LLY ECM. I mean, they're both Delphi, no?
And my 03 Tahoe has the same two 80-pin micropack 100w connectors that an LB7 ECM has...so those harnesses are "SIMILAR" too I guess. Hell the LS1-b ECM's even look identical on the outside to an LB7, I bet they're interchangeable as well.
OMG really???
Yeah and thats a completely custom hacked up one-off TCM calibration. You cant run a factory A40/A50 controller with an LB7/LLY ECM, which is exactly what you were making it sound like.....
ben
An 01-02 DURAMAX and asscoiated harness is the only drop in that will work. Starting in 03 GM changed the wiring layouts and such ALOT, this is why I chose to go with an 01-02 for my 95 BURB as they used simliar wiring layouts as far as colors and such goes.
It has been done with LLY heads, injectors, LB7 turbo, and other LB7 compnents setup to work with the LLY top end. Personally I see no reason to go to it myself. I've done LLY injectors, and they're no walk in the park either, and all of the dirt and crap that gets caked up around them is no fun to deal with either. And LLY's lose inejctors to, just not as often as LB7's.
~2 years later...
Learned alot with this build/repower.. Good, bad, and holy shit didn't thing that would work..
With my LMM will be rolling 300,000 miles next week.. I. Would easily have 400k by Christmas this year on it.. Fwiw I did ~92,000. Miles in 39-40 weeks last year.
Some legislation passed pertaining to CMV, stating anything newer then 2000 needs to have electronic logs, By 2018.
So plan..
Rust free 99 older C3500HD.
Possible 97 older doesn't require to have working ABS. (DOT violation)
Repower will be LBZ/6 speed Allison
International ran 1000 series in their 4200 with driveline/parking brake. That will be swapped over the the 455 chassis. Since OEM parking brake is tailshaft mounted, and hub brakes generally suck.. Also working parking brake is a DOT requirement
Allison will be built (gmax 6 variant) low stall tripple disc TC
Engine will be keyed, aftermarket pistons, possible rods, VVT removed, studed, basically identical to what is in my LMM though with a higher CR of 19:1
On the fence with ovals/round bowls
I have yet to get same loaded MPG as round with ovals. Granted finger designed them with strength being #1, efficiency was bottom of the list.. I honestly don't fault him for that, he has designed a superb product. MPG usually Isn't consider when building a 800+ truck lol
Need something better then stock, with stock like MPG.
Talking 1-2mpg drop from round to oval. Over 100,000 miles from 12 to 10 at 2.50 diesel that's ~$4100.00 increase in fuel cost.. That's ~20k over 500,000 miles.
I have an 06 LBZ donor truck which which I'm hoping to pull alot of electronics of to swap over.
The 455 run a D80 in the back with a 10*7.25 bolt pattern.. likely swap out for newer S110/130 with a 10*225mm bolt pattern and have new adapters made for the front. This Allow me to run aluminum rims.
Also will be building a 3 link air ride on the back as well.
Learned alot with this build/repower.. Good, bad, and holy shit didn't thing that would work..
With my LMM will be rolling 300,000 miles next week.. I. Would easily have 400k by Christmas this year on it.. Fwiw I did ~92,000. Miles in 39-40 weeks last year.
Some legislation passed pertaining to CMV, stating anything newer then 2000 needs to have electronic logs, By 2018.
So plan..
Rust free 99 older C3500HD.
Possible 97 older doesn't require to have working ABS. (DOT violation)
Repower will be LBZ/6 speed Allison
International ran 1000 series in their 4200 with driveline/parking brake. That will be swapped over the the 455 chassis. Since OEM parking brake is tailshaft mounted, and hub brakes generally suck.. Also working parking brake is a DOT requirement
Allison will be built (gmax 6 variant) low stall tripple disc TC
Engine will be keyed, aftermarket pistons, possible rods, VVT removed, studed, basically identical to what is in my LMM though with a higher CR of 19:1
On the fence with ovals/round bowls
I have yet to get same loaded MPG as round with ovals. Granted finger designed them with strength being #1, efficiency was bottom of the list.. I honestly don't fault him for that, he has designed a superb product. MPG usually Isn't consider when building a 800+ truck lol
Need something better then stock, with stock like MPG.
Talking 1-2mpg drop from round to oval. Over 100,000 miles from 12 to 10 at 2.50 diesel that's ~$4100.00 increase in fuel cost.. That's ~20k over 500,000 miles.
I have an 06 LBZ donor truck which which I'm hoping to pull alot of electronics of to swap over.
The 455 run a D80 in the back with a 10*7.25 bolt pattern.. likely swap out for newer S110/130 with a 10*225mm bolt pattern and have new adapters made for the front. This Allow me to run aluminum rims.
Also will be building a 3 link air ride on the back as well.
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First challenge would get a SAE2 Bell housing, mid plate milled for a Dmax... Though I'm sure Wagler could knock one out...
Outside the OEM TC dieing.. With 280k on it... I haven't had any issues or reasons not to use it again. Which i put a Transtar single disc in Jr and Mike L pump spring in when I had it out.
Your basic Allison with tripple disc build, will be more then capable to run @36,000lb which I'm doing right now.. And allow me to run full stock fuel is needed
Doesn't the MD trucks use a sae #2 bellhousing? Or was it a #3. I know they used a standard sae pattern in them vs the 90 degree GM pattern. But I still think the ALLISON would be a better option, then again I'm biased being a gimp that can't row my own gears anymore. The 6 speed with 4.56's even with a 19.5 tire should be pretty good gearing I would think.
GM didn't use the same SAE housing as come for OTR/MD trucks..
Currently have 4.56 in my LMM with 225/70/19.5(~32")
It's been a great gear first time out.
70mph is 2100rpm in 6th, 2400 in 5th @70
Next time around thinking 4.30 or 4.44 allow me to cruise 70-75 when allowed easier when light
Currently have 4.56 in my LMM with 225/70/19.5(~32")
It's been a great gear first time out.
70mph is 2100rpm in 6th, 2400 in 5th @70
Next time around thinking 4.30 or 4.44 allow me to cruise 70-75 when allowed easier when light
Didn't know if it would help carrying those heavier weights by having greater gear selection and mechanical advantage
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IMOP 1st gear in an Allison is low enough to get a heavy load rolling and there is enough power on tap for 2-4 when moving. Getting the correct rear end ratio should allow 5th to be used loaded heavy on and 6th with a lighter load or low wind resistance loads/ empty.
Adam would a long chassis do you any good or are you only interested in the 135.5 short chassis
I'd really like the 159 WB again that was what red one was or the 180wb
As for gears the 6/5 drop is substantially less than a 5/4 drop.. Truck runs substantially better especially at heavy or high sail loads with 4.56 gears. I ran @2400 rpm 80-90% of the time in the red dually.. Having the .75:1 OD and 4.63 geara
Idk...
For a sleeper Need min 84" CA(159" WB). 124" (180" wb)would work better but harder to find..