Duramax Hard Parts

Dmax Performance Parts and related discussions.

LB7 New

2.2K
31.9K
Threads
2.2K
Messages
31.9K
2004LB7
2003 no start condition

LLY New

1.3K
17.3K
Threads
1.3K
Messages
17.3K
None

LBZ New

1.2K
14.3K
Threads
1.2K
Messages
14.3K
1FastBrick
Truck wont rev much past 2k rpm no codes

LMM New

767
11.2K
Threads
767
Messages
11.2K
N2BRK
PLEASE HELP!! 07.5 LMM No shift indicator, dome lights, power locks & windows, NO CRANK NO START

LML New

652
8.4K
Threads
652
Messages
8.4K
1FastBrick
Got a couple of cylinder contribution codes

L5P New

124
3.7K
Threads
124
Messages
3.7K
Nate’s Dmax
L5P will barely start, then die Please Help

Transfer Case / Axles / Driveshafts Tech New

294
3.5K
Threads
294
Messages
3.5K
TheBac
No 4WD

Van

18
312
Threads
18
Messages
312
M
LGH (detuned LML in a van) Engine Shuts off at full throttle

Part #'s

396
2.3K
Threads
396
Messages
2.3K
K
Crossmember part # or replacement

Turbo Talk

"Nitrous is nice, but it's best to be Blown"
1.9K
43.7K
Threads
1.9K
Messages
43.7K
malibu795
WWYD? Turbo time

General Fuel System & Exhaust Questions New

373
7.7K
Threads
373
Messages
7.7K
2004LB7
dual tank woes

Fluids and Maintenance

652
10.7K
Threads
652
Messages
10.7K
OleBlackyLBZ
Starfire Fluid Built Trans

The Pharmacy

Nitrous, Propane, Meth, oxidizers
172
3.2K
Threads
172
Messages
3.2K
Baking83
Nitrous
L
SoCal Lb7 Duramax
Replies
2
Views
456
DAVe3283
DAVe3283
0
Drive pressure leak
Replies
8
Views
626
Bdsankey
Bdsankey
Wyatt.bilodeau
Blown turbo lly?
Replies
34
Views
1K
1FastBrick
1FastBrick
Mogman
The stand alone TCCM 08 LMM, the last hurdle
Replies
14
Views
1K
Coryend
C
T
Crank no start no codes
Replies
0
Views
354
TommyZyvoloski
T
LSxBakakos
Lb7 current 67mm drop in vs s400
Replies
6
Views
890
LSxBakakos
LSxBakakos
Fastshovelhead
LB7 Y-BRIDGE MODIFIED
Replies
40
Views
2K
Bdsankey
Bdsankey
Dm23
Another issue with coolant.
Replies
14
Views
750
Dm23
Dm23
Ironworker15
Lbz Broken crank
Replies
9
Views
997
ikeG
ikeG
M
LLY: Webasto/Espar heater instal
Replies
13
Views
5K
Gumby83
G
danzick
A/C oil
Replies
3
Views
319
2004LB7
2004LB7
M
LLY Fuel Rate Low?
Replies
10
Views
3K
saswanny
S
D
LLY: upper radiator hose collapsed when engine is cold
Replies
4
Views
3K
TheBac
TheBac
D
sheared crank pin cranks, no start
Replies
14
Views
610
1FastBrick
1FastBrick
S
I turned onto reduce power then looked under truck
Replies
29
Views
1K
JoshH
JoshH
E
Boost issue... Wondering if I have engine issues.
Replies
6
Views
1K
Steve9
S
Dm23
Upper radiator hose. Coolant leak.
Replies
9
Views
651
Dm23
Dm23
R
VSE Turbo
Replies
0
Views
508
Ron Nielson
R
S
Reduced Power
Replies
31
Views
894
Bdsankey
Bdsankey
T
LBZ Glow Plug diagnosis
Replies
5
Views
2K
Ron Nielson
R
D
How much should I trust FASS filtration?
Replies
15
Views
800
08lmm72mm
0
mtxcaleb
Scr doc dpf delete
Replies
2
Views
944
mtxcaleb
mtxcaleb
Pcfl.Vlly.DMaxxed
Please help! coolant leak!
Replies
4
Views
621
mtxcaleb
mtxcaleb
J
2006 GMC 6.6L Codes
Replies
5
Views
513
gmduramax
gmduramax
Big Chris
GT3788VA on a 2008 3500
Replies
4
Views
396
Bdsankey
Bdsankey
baggedLB7
Rolled my truck.
Replies
16
Views
1K
baggedLB7
baggedLB7
J
Emissions
Replies
4
Views
544
2004LB7
2004LB7
R
Transmission control module issue
Replies
17
Views
2K
1FastBrick
1FastBrick
robstu85
Bought LB7 04/13. Won't start 04/16.
Replies
23
Views
1K
robstu85
robstu85
briencolgan
Allison leak top of tranny on rear
Replies
29
Views
1K
briencolgan
briencolgan
J
No start and no communication
Replies
5
Views
574
jrfoust1
J
A
Loosing prime when hot
Replies
4
Views
703
aruss99
A
J
Air intake
Replies
6
Views
498
Joeyshanks
J
E
Difference in a 17-19 and 2020+ engine?
Replies
25
Views
1K
Nate’s Dmax
Nate’s Dmax
M
Front Hub Replacment
Replies
27
Views
1K
2004LB7
2004LB7
DAVe3283
  • Poll
Fleece Freedom Series Heads?
Replies
20
Views
2K
Bdsankey
Bdsankey
K
GLOW PLUG CAME OUT WITH THE THREAD
Replies
8
Views
533
2004LB7
2004LB7
mtxcaleb
Def pump replaced same issue
Replies
2
Views
434
mtxcaleb
mtxcaleb
ShopSpecialties
Custom Van Air Intake
Replies
36
Views
10K
DieselMike70
D
D
lag in acceleration on my LLY
Replies
7
Views
990
Dozerboy
Dozerboy
L
FRP regulator fuel flow command
Replies
2
Views
1K
LB7sdm
L
A
Down pipe sensor questions?
Replies
3
Views
386
05LLYDMAX
05LLYDMAX
2
Delete tips
Replies
10
Views
907
Dozerboy
Dozerboy
D
wtf is this noise?
Replies
23
Views
6K
KormoczyT
K
Pure Diesel
Replacement muffler
Replies
3
Views
467
2004LB7
2004LB7
GregJ77
Which T case so i have? casting number 25909
Replies
2
Views
266
GregJ77
GregJ77
GregJ77
Screwed maybe?
Replies
21
Views
909
TheBac
TheBac
Gentrysgarage
Anybody run a LLY VVT turbo with a waste-gate actuator controlling the vanes?
Replies
28
Views
2K
Gentrysgarage
Gentrysgarage
Robby Avery
How hard is it to scale LBZ fpr for lb7
Replies
19
Views
4K
Fastshovelhead
Fastshovelhead
LBZ
Dimpled Pistons
Replies
15
Views
2K
Dozerboy
Dozerboy
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