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'99 - '06 GM Truck Modifications
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Transmission & Transfer Case
Post thread
Shift Kits, Conversions, Adapters, Twin Stick, etc
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Title
Sticky
Answer to Any 4L60E Problem
silverado13
May 1, 2014
Replies
3
Views
15K
Mar 13, 2015
Thaedge
T
2nd Gear Starts - Random
JorgeS
Jan 7, 2026
Replies
14
Views
618
Wednesday at 11:32 AM
JorgeS
C
I’m having an issue with my transmission when starting the truck.
Corbinramey1
Feb 7, 2026
Replies
8
Views
362
Feb 8, 2026
Corbinramey1
C
R
np246 auto 4wd works, but not 4hi or 4lo, 2002 silverado 1500
rgray
Jan 16, 2026
Replies
6
Views
562
Jan 19, 2026
Cadillacmak
My girl's GMT360 2002 TrailBlazer & A Service 4WD dash message
ORVietVet
Nov 20, 2025
Replies
7
Views
442
Nov 26, 2025
SK101
O
All lights lit on dash TC switch, changed switch but that didn't work. Any tips please? Thanks 1999 Silverado 5.3 4X4
Old Irish Chevy Lad
Nov 23, 2025
Replies
4
Views
324
Nov 24, 2025
ORVietVet
8
4wd problem
802owen
Nov 17, 2025
Replies
3
Views
378
Nov 18, 2025
stutaeng
transfer case shift lever knob (np261)
AuroraGirl
Nov 10, 2025
Replies
4
Views
375
Nov 15, 2025
ORVietVet
4L65 Lockup Shudder
JamesTheDenali02
Sep 15, 2025
Replies
11
Views
746
Sep 29, 2025
Marky Dissod
M
A
4L60E Front pump failure.
A-Aron
Sep 21, 2025
Replies
3
Views
468
Sep 22, 2025
stutaeng
C
Range shift inhibited
clevor
Sep 2, 2025
2
Replies
22
Views
2K
Sep 19, 2025
Cadillacmak
A
4l80e swap
A-Aron
Sep 11, 2025
Replies
6
Views
1K
Sep 12, 2025
stutaeng
D
Need help on my trans
Dean jones
Jul 19, 2025
Replies
2
Views
526
Jul 19, 2025
ORVietVet
R
1999 5.3 4x4 transmission issue
RSteel
Jun 28, 2025
Replies
10
Views
910
Jul 1, 2025
stutaeng
M
2005 GMC 2500hd lly allison 4wd issue.
MrV
Jun 6, 2025
Replies
17
Views
1K
Jun 18, 2025
MrV
M
Transfer Case Questions
99Sierra2500
Apr 13, 2025
2
Replies
23
Views
3K
Apr 25, 2025
99Sierra2500
J
Battery Ran Dead and now 4x4 does work
jaydentruman
Feb 5, 2025
2
Replies
20
Views
2K
Feb 18, 2025
INW-Iron-Steel
U Joints For transfer case to front diff
JakeSei
Feb 1, 2025
Replies
10
Views
1K
Feb 1, 2025
ORVietVet
Poll
Auto Trak Fluid
bigdogYJ
Jan 16, 2025
Replies
11
Views
3K
Jan 20, 2025
ORVietVet
H
4l80e to Nv4500 Questions
Hollington37
Jun 27, 2022
Replies
0
Views
9K
Jun 27, 2022
Hollington37
H
T
6L80e Conversion
TheCaddyMan99
Apr 22, 2022
Replies
0
Views
11K
Apr 22, 2022
TheCaddyMan99
T
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