I am in the process of preparing to change most of the fluids on my vehicle, including the differentials and transfer case, and tranny. I already know which fluids to ...

I am in the process of preparing to change most of the fluids on my vehicle, including the differentials and transfer case, and tranny. I already know which fluids to use, but I have some concern I'm not sure of the actual capacity to use.

The chart on the AMS site for my truck shows different capacites for different ring gears in the differential and transfer case. They are fairly close, and part of me says to just fill them until the fluid comes out of fill hole..but I don't want to take a chance if someone knows how I can figure it out to be certain..

I have a 2006 Silverado 1500 Z71, 5.3L V8 Flex (Z) engine. Not sure about any other specifics concerning the differentials or transfers case/tranny.

What I'm looking for :

Front and Rear Ring Gear size
What Transfer Case: NVG-xxx-NPx
Which Tranny - 4L60-E or 4L70E

It would probably be good for you to know the sizes, just to know. But your own point is exactly right. Fill the differentials just to the point that some fluid drips out of the filler hole, and you are done.
Buy an extra quart to ensure you have enough, and you'll have no worries.

ricka182 wrote:I am in the process of preparing to change most of the fluids on my vehicle, including the differentials and transfer case, and tranny. I already know which fluids to use, but I have some concern I'm not sure of the actual capacity to use.

The chart on the AMS site for my truck shows different capacites for different ring gears in the differential and transfer case. They are fairly close, and part of me says to just fill them until the fluid comes out of fill hole..but I don't want to take a chance if someone knows how I can figure it out to be certain..

I have a 2006 Silverado 1500 Z71, 5.3L V8 Flex (Z) engine. Not sure about any other specifics concerning the differentials or transfers case/tranny.

What I'm looking for :

Front and Rear Ring Gear size
What Transfer Case: NVG-xxx-NPx
Which Tranny - 4L60-E or 4L70E

I hope this helps some.

1500 is usually a 8.6 rear axle with 8.25 front unless you gave the max trailerin option pkg and that includes a 9.5 rear. Typically it takes 5 qts to change out the front and rear axle on all 1500's. The other sizes listed are for 2500 and 3500 series but with trucks anything is possible especially with fleet builds.
The trans capacities are the same no matter what trans you have
The transfer takes a special GM fluid and you can find out which one by comparing option codes to the list below.
In reference to the AMSOIL lookup: Copyright ©2010 MOTOR Information Systems, a division of Hearst Business Media, Inc. All rights reserved.

In the glove box are options codes, compare to these
Transfer Case
NP1 Transfer case, Insta-Trac, electronic shift
NP1 Transfer case, electronic shift
NP1 Transfer Case, Electronic Shift, Two Speed
NP1 Transfer Case – (Electric) – Full Range
NP1 Transfer Case – (Electric) – Two Speed
NP1 Transfer Case Electric Shift Cont, Two Speed
NP2 Transfer case, floor-mounted shifter
NP2 Transfer Case- (Manual) – Full Range
NP2 Transfer Case- (Manual) – Two Speed
NP2 Transfer Case Manual Shift Cont, Two Speed
NP3 Transfer case, AWD electronic automatic system
NP3 Transfer Case – (AWD)
NP3 Transfer Case-All Wheel Drive (AWD)
NP3 Transfer Case All-Wheel Drive (AWD)
NP4 Transfer case, AWD active automatic system
NP4 Transfer case, electronic Autotrac
NP8 Transfer case, electronic Autotrac
NP8 Transfer case, active, 2-speed
NP8 Transfer Case – (Active) – Push Button Control, 2 Speed
NQF Transfer case, electronic shift with rotary dial controls
NQG Transfer case, with floor-mounted shifter
NQH Transfer case, electronic Autotrac
NQH Transfer case, active, 2-speed
NR3 Transfer case, AWD, electronic automatic system
NR4 Transfer case, 2.64:1, 2-speed, button-actuated full-time 4WD
NR4 Transfer case, open differential, 2-speed
NR4 Transfer case, 2-speed
NR6 Transfer case, 4:1, 2-speed, button-actuated full-time 4
NR9 Transfer case, AWD Torsen single-speed


Transmission
M09 Transmission, 5-speed automatic
M10 Transmission, 6-speed manual
M15 Transmission, 4-speed automatic
M15 Transmission, 4-speed automatic, FWD
M1F Power-Take-Off (P.T.O.) Provisions
M1F Power Take Off Rear PTO
M22 Transmission, 5-speed automatic
M30 Transmission, 4-speed automatic
M30 Transmission: 4L60-E, 4-Speed Automatic, Electronic
M30 Transmission – 4 Speed Auto W/ Electric Controls L.D. (Hydra-Matic 4L60-E)
M30 Transmission MAN 5 SPD, NVG, 109MM, 5.61 1ST, O/D
M30 Transmission Auto 4-Speed, HMD, 4L60-E, Electronic
M32 Transmission, 4-speed automatic, heavy-duty
M32 Transmission – 4-Speed Auto W/Electric Controls L.D. (Hydra-Matic 4L60-E)
M32 Transmission – 4 Speed Auto W/Electric Controls L.D. – Hydra-Matic 4L60-E
M32 Transmission, 4-speed automatic
M33 Transmission, 4-speed automatic, Hybrid
M33 Transmission, 4-speed automatic
M36 Transmission, 6-speed Sentronic automatic
M50 Transmission, 5-speed manual
M50 Transmission: Manual 5 Speed, New Venture Gear
M53 Clutch pedal with starter interlock
M70 Transmission, 4-speed automatic
M74 Transmission, Allison 1000 5-speed automatic
M74 Transmission – Automatic, 5 Speed (H.D.) Allison 1000 Series
M74 Transmission Auto 5 SPD Allison LCT 1000, 3.10 1ST, 1.00 4TH .71 5TH, O/D, CONV Clutch
M82 Transmission, 5-speed automatic
M86 Transmission, 5-speed manual
M99 Transmission, 4-speed automatic, strong hybrid specific
MA5 Transmission, 5-speed manual
MA5 Transmission, 5-speed manual with overdrive
MAE Marketing Area Code Europe
MAU Marketing Area Code Unregulated
MC2 Transmission, 5-speed manual
ME7 Transmission, 4-speed automatic
MG3 Transmission, 5-speed manual
MG5 Transmission, 5-speed manual
MG5 Transmission: Manual 5 Speed, New Venture Gear
MG5 Transmission – 5 Speed Manual (4.02:1) New Venture Gear
MG5 Transmission MAN 5 SPD, GETRAG, 84 MM, 4.00 1ST, O/D
MG5 Transmission Man 5 Spd, Getrag, 84mm, 4.001st, O/D
MH2 Transmission, 6-speed automatic
MH6 Transmission, 6-speed automatic
MJ7 Transmission, 5-speed automatic
MJ8 Transmission, 5-speed automatic
ML6 Transmission, 6-speed manual, heavy-duty
ML6 Transmission MAN 6 SPD, ZF, 105 MM, 5.79 1ST, 0.72 6TH, O/D
MM1 Transmission, 4-speed automatic
MM1 Transmission, automatic
MM3 Transmission, 5-speed manual
MM3 Transmission, manual
MM5 Transmission, 5-speed manual
MM5 Transmission, Aisin 5-speed manual
MN5 Transmission, 4-speed automatic
MN6 Transmission, 6-speed manual
MN6 Transmission, Aisin 6-speed manual
MN6 Transmission, Tremec 6-speed manual
MN8 Transmission, 4-speed automatic, heavy-duty
MN8 Transmission Auto 4-Speed, HMD, 4L80-E, Heavy Duty
MSL Plant Code, Silao, Mexico
MSL Silao Assembly (Mexico)
MT1 Transmission, 4-speed automatic, heavy-duty
MT1 Transmission: 4L80-E, 4-Speed Automatic, Electronic
MT1 Transmission -5 Speed Manual (5.61:1) New Venture Gear
MT1 Transmission – 4 Speed Auto W/Elect Controls H.D. (Hydra – Matic 4L80 – E
MT1 Transmission – 4-Speed Auto W/Elect Controls H.D. (Hydra – Matic 4L80 – E
MT1 Transmission 4-Speed Auto W/Elect Controls H.D. – Hydra – Matic 4L80 – E
MU9 Transmisison, 6-speed manual
MV3 Transmission, 5-speed automatic
MW2 Transmission, 5-speed manual
MW3 Transmission, 5-speed manual
MW3 Transmission, 5-speed manual
MW3 Transmission: Manual 5 Speed, New Venture Gear
MW3 Transmission – 5 Speed Manual (5.61:1) New Venture Gear
MW3 Transmission – 5-Speed Manual (5.61:1) New Venture Gear
MW3 Transmission Man 5 Spd, NVG, 109 mm, 5.61 1st, O/D
MW7 Transmission, Allison 1000 6-speed automatic
MX0 Transmission, 4-speed automatic
MX0 Transmission, 6-speed paddle shift with automatic modes
MX0 Transmission, 5-speed automatic
MX0 Transmission, 6-speed automatic
MX0 Transmission, electronically-controlled with overdrive, Hydra-Matic
MX0 Transmission, 6-speed automatic for RWD
MX0 Transmission, 5-speed automatic for RWD
MX0/M15 Transmission, 4-speed automatic
MX0/MN7 Transmission, 4-speed automatic, heavy-duty
MX1 Transmission, 4-speed automatic for Hybrid
MX5 Transmission, 5-speed automatic
MX7 Transmission, 6-speed automatic for AWD
MX7 Transmission, electronically-controlled PTU with overdrive, Hydra-Matic
MX7 Transmission, 5-speed automatic for AWD
MY9 Transmission, 6-speed automatic
MYC Transmission, 6-speed automatic
MYD Transmission, 6-speed automatic, heavy-duty

Axle
G80 Differential, heavy-duty locking rear
G80 Differential, automatic locking rear
G80 Differential, heavy-duty automatic locking rear
G80 Differential, limited slip rear
G80 Differential, limited slip
G80 Differential, locking, heavy-duty, rear
G80 Differential, Zexel-torsen, limited-slip, rear
G80 Differential, automatic
G80 Rear Axle: Positraction
G80 Locking, Rear Axle
G80 Axle Positraction Limited Slip
G80 Differential, locking, rear
G85 Differential, limited slip
G86 Differential, limited slip
G86 Differential, limited slip, heavy-duty, rear
G94 Differential, full-locking rear
GAM Sales code, federal government
GAM Vehicle Government
GAT All-Terrain Package
GDY GVWR, 4538 lbs. (2058 kg)
GEA GVWR, 4718 lbs. (2140 kg)
GEC GVWR, 9800 lbs. (4445 kg)
GED GVWR, 9700 lbs. (4400 kg)
GH0 3.54:1 Rear Axle Ratio
GK9 Rear Axle: 4.63 Ratio
GM8 Rear axle, 2.56 ratio
GMC Pontiac East Assembly
GMC Plant Code Pontiac, MI, USA
GT4 Rear axle, 3.73 ratio
GT4 Rear Axle Ratio, 3.73
GT4 Rear Axle: 3.73 Ratio
GT4 3.73:1 Rear Axle Ratio
GT4 Axle Rear 3.73 Ratio (DUP With 5 x 1)
GT4 Axle ratio, 3.73
GT5 Rear axle, 4.10 ratio
GT5 Rear Axle: 4.10 Ratio
GT5 4.10:1 Rear Axle Ratio
GT5 Axle Rear 4.10 Ratio (DUP With GT8)
GTY Rear axle, wide-track
GTY Axle Wide Track
GTY Wide Track Rear Axle
GU2 Rear axle, 2.73 ratio
GU4 Rear axle, 3.08 ratio
GU4 Rear Axle: 3.08 Ratio
GU4 3.08:1 Rear Axle Ratio
GU4 Axle Rear 3.08 Ratio
GU5 Rear axle, 3.23 ratio
GU5 Axle ratio, 3.23
GU6 Rear axle, 3.42 ratio
GU6 Rear Axle: 3.42 Ratio
GU6 3.42:1 Rear Axle Ratio
GU6 Axle Rear 3.42 Ratio
GU6 Axle, 3.42 ratio
GW1 Rear axle, 3.91 ratio
GW1 Axle ratio, 3.91
GW5 Axle, 3.16 ratio

Thanks guys! I'm putting the truck up Saturday to replace the torsion bar mounts, so I'll take a look at the gear boxes and see if there any markings on them.

As of, I'm planning to use the Sig Series for engine, the 80w90 syn lube for diffs, the low-viscosity ATF for tranny, and the syn multi vehicle fluid for the trans. I think I got all that right from the AMS site, I don't have the paper printed out in front of me with the specifics.

I also just got my preferred customer package the other day; mulling over to push my friends to buy AMS as well and become a indy dealer..

Mike (Z15) can help you with any of that, especially becoming a dealer. Good luck!

Awesome info Z15!! Thanks!