TRANSFER CASE

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Last post

Sticky NP233 electric shift to manual shift swap

Last post by Astrophysics « Fri Jul 06, 2018 8:33 am
Replies: 92
by LiftedAWDAstro » Tue Dec 18, 2012 1:48 pm
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I want/need a true transfer case with low range so I decided to go with a NP233. Initially I wanted to use all the electronics and wire it in all...
92 Replies

123226 Views

Last post by Astrophysics
Fri Jul 06, 2018 8:33 am
Sticky Transfer case swap to a 2 speed - electric shift

Last post by photo_van « Sun Nov 17, 2013 7:57 pm
Replies: 32
by LiftedAWDAstro » Mon Oct 22, 2007 7:29 pm
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This information was originally posted by BIGAT on the Astrosafari forum.

This is his documented swap of a NP233C electric shift 2 speed transfer...
32 Replies

40662 Views

Last post by photo_van
Sun Nov 17, 2013 7:57 pm
Sticky T.Low's take on transfer case swap 2spd electronic shift,

Last post by LiftedAWDAstro « Fri Dec 14, 2012 4:07 pm
Replies: 31
by T.Low » Thu Jun 19, 2008 8:56 am
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The night before I leave on a 10 day vacation, I find a '97 Blazer on Craigs list, sans motor. I tell my buddy at work, (who we will refer to as...
31 Replies

35654 Views

Last post by LiftedAWDAstro
Fri Dec 14, 2012 4:07 pm
Sticky Transfer case swap to a 2 speed - manual shift

Last post by Cobra « Sun Mar 04, 2012 4:51 am
Replies: 42
by LiftedAWDAstro » Tue Sep 19, 2006 4:59 pm
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Here is a collection of pertinant posts and information to help with anyone doing a swap from AWD to a manual shift 2 speed transfer case. This...
42 Replies

57096 Views

Last post by Cobra
Sun Mar 04, 2012 4:51 am
Sticky Astro Select Trac AWD/4x4, NP 242c build and install

Last post by LiftedAWDAstro « Fri Jan 27, 2012 4:05 am
Replies: 44
by photo_van » Thu Nov 17, 2011 7:21 pm
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After months of research, I picked up a 242j and began preparing it for duty in my Astro. I live in snow country and was insistant on keeping some...
44 Replies

45110 Views

Last post by LiftedAWDAstro
Fri Jan 27, 2012 4:05 am
How to wire up a NP 236 in place of a 136.

Last post by Roadstar01 « Tue Aug 27, 2024 8:53 pm
Replies: 237
by racrx7 » Thu Feb 18, 2016 7:53 pm
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So I've been asked to do a how to wiring install of my NP236 transfer case. I wanted to get this started and will add to it as time permits. First a...
237 Replies

111754 Views

Last post by Roadstar01
Tue Aug 27, 2024 8:53 pm
NP236/246 hybrid build

Last post by Roadstar01 « Sat Aug 24, 2024 1:54 pm
Replies: 21
by racrx7 » Tue Nov 24, 2015 7:36 pm
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So this is a NP236/246 4X4 transfer case build for my 03 AWD Astro. While I could have went with a 231 or 233, I liked the idea of retaining AWD...
21 Replies

15530 Views

Last post by Roadstar01
Sat Aug 24, 2024 1:54 pm
Transfer case with .85:1

Last post by Bret Schmerker « Mon Jun 27, 2022 2:31 pm
Replies: 7
by desertprep » Fri May 27, 2022 8:03 am

Has anyone seen a transfer case for the 'stro with a .85:1 high gear? I would like to put 4.11's in the rear ends and the .85 gear would give me...

7 Replies

3310 Views

Last post by Bret Schmerker
Mon Jun 27, 2022 2:31 pm
anyone have front diff problems after 4x4 swap

Last post by MountainManJoe « Mon Nov 15, 2021 11:53 am
Replies: 3
by markinnh » Mon Nov 15, 2021 6:42 am

I remember reading somewhere that some had issues with the front differential after swapping in a 4x4 transfer case. Anyone care to discuss this and...

3 Replies

822 Views

Last post by MountainManJoe
Mon Nov 15, 2021 11:53 am
AWD conversion to 4x4

Last post by Snowgeek « Sat Jul 17, 2021 8:53 am
Replies: 3
by LarryElite » Mon Mar 16, 2009 10:32 am

Where may I obtain information on converting a 2002 Astro AWD to a 4x4?

3 Replies

11751 Views

Last post by Snowgeek
Sat Jul 17, 2021 8:53 am
Differential seems to be binding up. 03 Safari AWD

Last post by MountainManJoe « Tue Jul 06, 2021 12:44 pm
Replies: 5
by Forgivenbob » Mon Jul 05, 2021 10:34 am

Hello,
I bought an 03 Safari AWD w/130,000 on it 3 years ago..
I really enjoy the AWD in the snow, but on dry pavement, the rear end seems to bind...

5 Replies

911 Views

Last post by MountainManJoe
Tue Jul 06, 2021 12:44 pm
Can I use a 226 transfer case

Last post by mglsite « Thu Jan 28, 2021 4:30 pm
Replies: 5
by mglsite » Mon Dec 07, 2020 12:10 pm

Hi, new member here and I was wondering if a 226 GM case would work on my 2000 Astro, I just scored one for cheap along with the switches and...

5 Replies

1504 Views

Last post by mglsite
Thu Jan 28, 2021 4:30 pm
Encoder motor maintenance

Last post by Astrophysics « Mon Jan 11, 2021 9:46 am
Replies: 3
by Captn. Crunch » Sun Dec 13, 2020 3:58 pm

The last couple of weeks I’ve been getting the dreaded clicking from the tccm on startup. This hasn’t been every day and the service light has also...

3 Replies

1291 Views

Last post by Astrophysics
Mon Jan 11, 2021 9:46 am
looking for info on 4472 to 231 swap

Last post by MountainManJoe « Sat Oct 03, 2020 1:15 pm
Replies: 1
by markinnh » Sat Oct 03, 2020 11:32 am

Hello I am looking for info on swapping a NP231c in place of the np4472 I need to know which driveshafts to use what mods I will need to make and any...

1 Replies

871 Views

Last post by MountainManJoe
Sat Oct 03, 2020 1:15 pm
S10 front axle swap

Last post by Captn. Crunch « Sun Jun 09, 2019 5:46 am
Replies: 13
by Owly » Mon Sep 29, 2014 9:45 am

Anybody swap out their front differential for one from an S10 with the axle that disengages?

I have a 2000 AWD, and am looking at all the little...

13 Replies

10607 Views

Last post by Captn. Crunch
Sun Jun 09, 2019 5:46 am
03awd ?

Last post by Captn. Crunch « Fri Jan 12, 2018 8:04 am
Replies: 10
by Raw » Mon Jan 08, 2018 6:21 pm

Just bought a used 03 awd Astro, has 124k miles. One of the previous owners removed the front drive shaft. Not sure why.
If the vans rear tires are...

10 Replies

5598 Views

Last post by Captn. Crunch
Fri Jan 12, 2018 8:04 am
towing van

Last post by Herbie « Mon Nov 20, 2017 9:39 am
Replies: 2
by pakraus » Sun Nov 19, 2017 12:22 pm

if I install the nc233 transfercase, am I correct in thinking I can flat tow the van with the new case in neutral? any advice appreciated.

2 Replies

2829 Views

Last post by Herbie
Mon Nov 20, 2017 9:39 am
Astro Van 93 2wd to 4x4 conversion ...

Last post by Mmusicman « Sun Apr 23, 2017 3:03 pm
Replies: 11
by AquaAngel » Tue May 06, 2014 6:14 pm

Well after all this time, my van is running pretty good and i love the sound of my new Exhaust and all, but i'm in need of another project and i...

11 Replies

14422 Views

Last post by Mmusicman
Sun Apr 23, 2017 3:03 pm
np136 vs np236

Last post by racrx7 « Tue Dec 20, 2016 8:30 am
Replies: 79
by Captn. Crunch » Fri Nov 14, 2014 11:14 am
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I know I said I was gonna take the winter off from doing any mods but I have just found myself blessed with the Patron Saint of Mods who is willing...
79 Replies

44304 Views

Last post by racrx7
Tue Dec 20, 2016 8:30 am
Transfer case slipping; van creeping in park

Last post by doyoulikeithere « Mon Dec 05, 2016 6:17 pm
Replies: 41
by ball » Wed Apr 30, 2014 2:58 pm
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Hi. I have issues with my 1993 AWD Astro which are seemingly related.

1) The van, if parked on an incline without the e-brake applied, will not stay...
41 Replies

23921 Views

Last post by doyoulikeithere
Mon Dec 05, 2016 6:17 pm
Slight leak from NP233 tail - Fix, upgrade, just top off?

Last post by Stroverlander « Wed Aug 10, 2016 7:14 am
Replies: 3
by Herbie » Tue Jul 26, 2016 10:39 am

Hey all,

So I finally had the van sitting on one place long enough to really spot the source of some oil I'd been looking for. Turns out I've got...

3 Replies

3961 Views

Last post by Stroverlander
Wed Aug 10, 2016 7:14 am
NP 236 availability

Last post by Captn. Crunch « Mon Jun 27, 2016 4:40 am
Replies: 1
by RINNY » Wed Jun 22, 2016 7:54 pm

Does anyone have a list of vehicles that came with the NP236?
Much appreciated.

1 Replies

2841 Views

Last post by Captn. Crunch
Mon Jun 27, 2016 4:40 am
Awd problems

Last post by Mojo7139 « Sun Feb 07, 2016 5:56 pm
Replies: 11
by Mojo7139 » Mon Jan 25, 2016 8:56 am

I'm sorry about making a new post here but I've read almost all threads referring to this problem and I've still got questions. I've got an 03 astro...

11 Replies

7125 Views

Last post by Mojo7139
Sun Feb 07, 2016 5:56 pm
Wiring the NP236

Last post by racrx7 « Sat Feb 06, 2016 5:02 pm
Replies: 3
by blinkibus » Thu Feb 04, 2016 7:04 pm

I have been searching around and reading all day, (needed something to do while recovering from the flu) and I did not come across useful info on the...

3 Replies

3688 Views

Last post by racrx7
Sat Feb 06, 2016 5:02 pm
Video of my NP236/246 transfer case

Last post by racrx7 « Mon Dec 07, 2015 4:15 am
Replies: 8
by racrx7 » Wed Dec 02, 2015 2:40 pm

My NP236/246 going thru the ranges. Switch is not finalized and wiring not tided up. But you get to see and hear it go thru the ranges.
:cheers:

8 Replies

5690 Views

Last post by racrx7
Mon Dec 07, 2015 4:15 am
2003 NP233C into a 2003 astro

Last post by RINNY « Sun Oct 18, 2015 1:55 pm
Replies: 1
by RINNY » Sun Oct 18, 2015 1:46 pm

Will this just bolt in place and splice the wiring into existing? Pull the awd fuse and I am in business?

1 Replies

2875 Views

Last post by RINNY
Sun Oct 18, 2015 1:55 pm
Transfer case clutch pack set up with special service tool

Last post by Stroverlander « Fri Oct 09, 2015 1:00 pm
Replies: 2
by racrx7 » Thu Oct 08, 2015 8:07 pm

For anyone that wants to know the proper way to set up your transfer case clutch packs. This applies to the NP136, 236, 246. The special service tool...

2 Replies

5598 Views

Last post by Stroverlander
Fri Oct 09, 2015 1:00 pm
233c swap successful, no speedo and abs/parkbrake light on

Last post by Herbie « Sun Oct 04, 2015 6:02 am
Replies: 21
by thegreenmachine » Fri Sep 20, 2013 4:51 pm
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hey guys long time no see

I recently (today) swapped in a 233c tcase as per the LiftedAWDAstro's thread. (write up to follow later)

no major...
21 Replies

13240 Views

Last post by Herbie
Sun Oct 04, 2015 6:02 am
Brog Warner/general TC questions?

Last post by photo_van « Fri Aug 07, 2015 8:39 am
Replies: 4
by truC » Tue Aug 04, 2015 5:45 pm

This is bit long, sorry. Trying to make a decision on what direction to go.

I just found a guy selling a complete 1998 Safari with 187k miles on it...

4 Replies

4037 Views

Last post by photo_van
Fri Aug 07, 2015 8:39 am
Swap BorgWarner transfercase

Last post by bluesea « Wed Aug 05, 2015 12:52 pm
Replies: 21
by bluesea » Tue Sep 23, 2014 12:38 pm
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Hello
I want to swap my BorgWarner transfercase in my 95er Astro with a two speed from a Chevy Blazer. I have read a lot of treats here but I still...
21 Replies

12657 Views

Last post by bluesea
Wed Aug 05, 2015 12:52 pm
WILD AND CRAZY GUY

Last post by AstroWill « Fri May 22, 2015 10:43 am
Replies: 1
by Icuff4cash » Thu May 21, 2015 8:21 am

:yikes: hello my name is Robert
I been a member for a while but been bench racking because my HOA IN VEGAS does not allow project cars.
I now have a...

1 Replies

2931 Views

Last post by AstroWill
Fri May 22, 2015 10:43 am
Swapping from the NP136 to the BW4472 (need feedback please)

Last post by Meterpig « Sun Feb 15, 2015 9:12 am
Replies: 11
by Meterpig » Sat Jan 03, 2015 11:39 pm

So, first I want to thank Photo_Van for playing into my devious plans. As I mentioned before, I am on NP136 #2. #1 froze up and stretched the chain...

11 Replies

8497 Views

Last post by Meterpig
Sun Feb 15, 2015 9:12 am
Where to find a transfer case? (NP233)

Last post by T.Low « Thu Dec 04, 2014 10:18 pm
Replies: 4
by Wiley » Wed Nov 26, 2014 10:19 am

So I want to swap out my transfer case for 4x4 now that I have decided to keep the van. From reading I think I want a NP233, I do not want to deal...

4 Replies

4263 Views

Last post by T.Low
Thu Dec 04, 2014 10:18 pm
2004 AWD Safari

Last post by Captn. Crunch « Thu Nov 20, 2014 6:26 am
Replies: 3
by ken k » Wed Nov 19, 2014 12:19 pm

well snow has fallen, had some issues with my AWD, replaced the encoder motor, never went further than there, so it snowed today I put the ATC fuse...

3 Replies

3927 Views

Last post by Captn. Crunch
Thu Nov 20, 2014 6:26 am
136 manual 4x4 conversion

Last post by photo_van « Fri Oct 03, 2014 5:10 pm
Replies: 3
by Owly » Wed Oct 01, 2014 10:13 am

There seems to be a consensus that the 136 cannot be converted to manual engage in and out transfer case. As I see it this shouldn't be a huge...

3 Replies

4134 Views

Last post by photo_van
Fri Oct 03, 2014 5:10 pm
Transfer case question

Last post by ken k « Wed Jul 16, 2014 4:30 pm
Replies: 13
by ken k » Tue Jun 03, 2014 1:31 pm

new here, i have a 90 astro shorty and picked up a 2004 Safari in feb, on the Safari the other day I noticed the AWD service light was not coming on,...

13 Replies

9113 Views

Last post by ken k
Wed Jul 16, 2014 4:30 pm
REAL WORLD differences between 98 and 99 AWD ??

Last post by LAZ 1 « Fri Jul 04, 2014 6:02 pm
Replies: 6
by LAZ 1 » Thu Jul 03, 2014 11:46 am

I have BOTH 1998 AND 1999 AWD Safaris.

I suppose there is more to the differences in the transfer cases and AWD systems than just GM marketing and...

6 Replies

5507 Views

Last post by LAZ 1
Fri Jul 04, 2014 6:02 pm
Transfer case from 1994 Chevy K2500 Diesel

Last post by Drummernaut « Tue May 06, 2014 6:32 pm
Replies: 7
by 99AstroMod » Sat May 03, 2014 1:05 pm

Will the 4L80E Tranny bolt up to the 4.3 Vortec? Or alternately, will the transfer case behind that tranny bolt up to my 4L60E? I'm tired of my AWD...

7 Replies

5667 Views

Last post by Drummernaut
Tue May 06, 2014 6:32 pm
Quest for another 2 speed w/AWD transfer case

Last post by LiftedAWDAstro « Fri Feb 28, 2014 3:43 am
Replies: 46
by LiftedAWDAstro » Fri Jan 13, 2012 5:33 pm
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Plowed the driveway tonight and realized I HATE this 136 transfer case for plowing! ](*,) Got stuck because of the delay in engaging. I also want low...
46 Replies

28287 Views

Last post by LiftedAWDAstro
Fri Feb 28, 2014 3:43 am
Drivetrain binding in tight turns

Last post by mdmead « Thu Feb 27, 2014 12:47 pm
Replies: 2
by Dungeness » Wed Feb 26, 2014 9:01 am

Had a problem with the drive train on my 2000 Safari binding in tight turns. Went on-line and most common diagnosis was break-down of transfer case...

2 Replies

3251 Views

Last post by mdmead
Thu Feb 27, 2014 12:47 pm
can you add a selector switch to a 2000 awd?

Last post by Drummernaut « Tue Dec 17, 2013 1:51 pm
Replies: 3
by 2000 Astro awd » Thu Dec 12, 2013 5:49 am

I've got a 2000 Astro awd that I want to add a selector switch to, to actuate the 4 wheel drive on demand. Is this possible?

3 Replies

3699 Views

Last post by Drummernaut
Tue Dec 17, 2013 1:51 pm
Where the hell do they hide the..

Last post by 2000 Astro awd « Thu Dec 12, 2013 5:48 am
Replies: 1
by kb5103 » Thu Dec 12, 2013 4:41 am

TCCM's in the 99-05 vans? Hollander claims it is in the Left kick panel but all I can seem to find is a gagle of wires and the E-brake assembly....

1 Replies

3085 Views

Last post by 2000 Astro awd
Thu Dec 12, 2013 5:48 am
Transfer case to front differential noise

Last post by Tegnus « Wed Oct 09, 2013 11:00 pm
Replies: 2
by Tegnus » Tue Oct 08, 2013 10:35 pm

While checking transfer case to front differential drive shaft, noticed that there is slight play and noise when I move it, just wondering if that is...

2 Replies

3328 Views

Last post by Tegnus
Wed Oct 09, 2013 11:00 pm
2nd gen BW4472 to NP233

Last post by photo_van « Wed Oct 09, 2013 6:53 am
Replies: 4
by chuck.z » Mon Sep 30, 2013 10:14 pm

Hey there guys. I'm hoping to gather up enough information to feel comfortable about doing this swap in the future. I have a 1996 AWD and have cheap...

4 Replies

5049 Views

Last post by photo_van
Wed Oct 09, 2013 6:53 am
Tire Size Swap

Last post by dobaroy « Thu Sep 05, 2013 5:42 am
Replies: 3
by dobaroy » Tue Sep 03, 2013 5:48 am

We blew a tire on our '03 Safari AWD, the tire size 215/70/16 and cannot seem to get a good enough one to match it up . . . BUT we have a set of...

3 Replies

3479 Views

Last post by dobaroy
Thu Sep 05, 2013 5:42 am
NP233c Rear Output Shaft Seal

Last post by A-Team « Sun Aug 04, 2013 12:45 pm
Replies: 2
by A-Team » Sat Aug 03, 2013 8:41 pm

Hey Gang!
I'm putting together a transfer case swap into my '03 AWD. Building as per Dean's directions for a cable shift. When taking out the old...

2 Replies

3440 Views

Last post by A-Team
Sun Aug 04, 2013 12:45 pm
97 Astro Transfer Case Jump

Last post by Cobra « Thu Jun 27, 2013 7:55 am
Replies: 11
by awdoug97 » Fri Jun 21, 2013 3:29 pm

Have been given a 97 Astro LS, 165K, body, inside, engine, transmission super condition, transfer case has begun to jump/skip.

No pattern to it,...

11 Replies

10851 Views

Last post by Cobra
Thu Jun 27, 2013 7:55 am
Installing encoder motor on Transfer case of 05

Last post by VWcorvette « Tue Jun 18, 2013 5:58 pm
Replies: 12
by VWcorvette » Sat Jun 15, 2013 10:26 am

Can't seem to find an answer to this any where I look. I have the old encoder motor off and comparing to the new one (Cardone reman) they are not...

12 Replies

8215 Views

Last post by VWcorvette
Tue Jun 18, 2013 5:58 pm
AWD Engage/Defeat switch?

Last post by Drummernaut « Thu Feb 21, 2013 6:03 pm
Replies: 66
by Great A'Tuin » Thu Apr 15, 2010 6:30 pm
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As much as I would love to install the 4WD transfer case, that may be more effort than I really need to take on right now.
Is it possible to install...
66 Replies

36287 Views

Last post by Drummernaut
Thu Feb 21, 2013 6:03 pm
may be having trouble with awd

Last post by MountainManJoe « Sun Feb 10, 2013 1:44 pm
Replies: 8
by astrojohn » Sat Jan 19, 2013 5:13 pm

Does anyone have the schematic for the AWD system in a 2000 Astro van?
What sensors or...... tell the encoder motor to engage the front wheels when...

8 Replies

7869 Views

Last post by MountainManJoe
Sun Feb 10, 2013 1:44 pm

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