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Other NP246, (2) IFS 9.25" LATE MODEL W/ARB LOCKER & EARLYMODEL

FellowTraveler

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Thread starter #1
1) (one) Nice late model NP246 Autotrac has encoder motor, 3 speed sensors and front driveshaft $650. +S&H,

1) (one) Front 9.25" IFS differential 4.10:1 ratio, (late model) w/additional pinion bearing lube feed & heavy case (more webbing) w/ARB air locker "just redone" w/new air engage hub on carrier and bearings, the ARB carrier works w/any ratio gear set. I'll include two new outer axle seals because they are hard to get (months) w/o manufacture defects "seal canted in bore", GM & everyone else no matter the brand seem to be using the same manufacture so it's a supply wide issue." $1,100. + S&H

1) (one) Front 9.25" differential 4.10:1 ratio, (early model). $350. + S&H

"TRANSMISSION & T-CASE ADAPTER NOT INCLUDED"

KEEP IN MID THESE ITEMS ARE HEAVY & SHIPPING COSTS ARE HIGH

PAYPAL & USPS money orders accepted. DSCI0006.JPG DSCI0003.JPG
 

FellowTraveler

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Thread starter #5
What year is the transfer case? 99-02 is the same, 03 up is different. Thanks
The build date is 6-23-00 was put into service "as new not reman" in 2006 for 1999 & up applications.
The only difference aside spline count between 4L60 & 4L80 was later programming to "allow for more slippage" of clutch pack" I'm not sure if they ever included an aluminum half case in production.

DSCI0010.JPG
 

THEFERMANATOR

FRANKENBURBAN
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The difference was the encoder motor. Pretty sure you can swap out the encoder and use it on a 03-07 classic. Starting in 07, NEW PROCESS went under and MAGMA took them over and started producing there own line of cases with aluminum housings instead of magnesium.
 

FellowTraveler

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Thread starter #7
The difference was the encoder motor. Pretty sure you can swap out the encoder and use it on a 03-07 classic. Starting in 07, NEW PROCESS went under and MAGMA took them over and started producing there own line of cases with aluminum housings instead of magnesium.
Like always Ferm "thanks for the heads up."
So the one I have is the early unit, no updated encoder motor.
 

THEFERMANATOR

FRANKENBURBAN
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Staff #8
It's not an updated encoder, just a different style. GM changed data coms in 03 which meant they changed controllers, and they also changed the actuators to go with the new controller. It was just a generational change, same thing happened with the 261/263 cases.
 

FellowTraveler

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Thread starter #9
It's not an updated encoder, just a different style. GM changed data coms in 03 which meant they changed controllers, and they also changed the actuators to go with the new controller. It was just a generational change, same thing happened with the 261/263 cases.
Good to know, thanks....
 

FellowTraveler

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Messages
2,506
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1,687
Location
Nature Coast
Thread starter #10
1) (one) Nice late model NP246 Autotrac has encoder motor, 3 speed sensors and front driveshaft $650. +S&H,

1) (one) Front 9.25" IFS differential 4.10:1 ratio, (late model) w/additional pinion bearing lube feed & heavy case (more webbing) w/ARB air locker "just redone" w/new air engage hub on carrier and bearings, the ARB carrier works w/any ratio gear set. I'll include two new outer axle seals because they are hard to get (months) w/o manufacture defects "seal canted in bore", GM & everyone else no matter the brand seem to be using the same manufacture so it's a supply wide issue." $1,100. + S&H

1) (one) Front 9.25" differential 4.10:1 ratio, (early model). $350. + S&H

"TRANSMISSION & T-CASE ADAPTER NOT INCLUDED"

KEEP IN MID THESE ITEMS ARE HEAVY & SHIPPING COSTS ARE HIGH

PAYPAL & USPS money orders accepted. View attachment 48883 View attachment 48884
AutoTrac SOLD
 

FellowTraveler

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Nature Coast
Thread starter #11
Bump, I had forgotten the sale of the 1999 9.25 IFS w/ARB locker w/4.10 ratio fell through so its still for sale, it comes with complete manual, parts list, harness that has provision for controlling a rear ARB locker too, switches, and compressor however compressor needs seals and new exterior air lines.

NOTE: The axle seal issue was resolved and selling unit w/new extra seals included.
Asking $1k USD/FRN
I can't ship so it's pickup only in zip 34429
 

FellowTraveler

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Nature Coast
Thread starter #12
Open to offers on the 99 IFS 9.25" DIFF w/4.10 ratio & ARB AIR LOCKER however; because I have medical issues I can only perhaps do a small pallet w/straps so it an be shipped and have no shipping options available so if any of you decide you want it then you need to arrange for freight pickup at my AO.
 
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