Front Diff Delete?

THIS FORUM IS FOR ANY QUESTIONS ON THE 7.25" IFS FRONT DIFF, CV HALF SHAFTS AND FRONT DRIVE SHAFT.
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Festus33
I am merely driving my van
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Front Diff Delete?

Post by Festus33 »

I recently bought a 2K AWD Astro, that has a shot front diff in it. (My 2nd Astro, I also have a 93 EXT Gladiator conversion.)

Is it possible to just Delete the front drive part of the system, without creating other problem's?

First off I've never had a real need for AWD/4WD and increasing mileage is not the issue either.
Money to spend on a new diff or a rebuild is a bit of an issue.

After reading several other post's here about de activating the AWD, and about running without the half shaft's.
I've come up with this plan of attack, Please let Me know if you see any serious flaw's in My reasoning here.

First I've already pulled the ATC fuse to deactvate the AWD system.
Second I intend to remove the Front Drive shaft (Transfer case to front diff.)
Third I will remove the Half shaft's and disassemble them for the stub end's.
Fourth I will reinstall the Half shaft stub end's back into the bearing pack's to hold everything together.

If I've understood the other post's I've read here, I should then have a Functional RWD van with an unused diff hanging out up front.
I will probably remove the diff later on.

Am I correct in these assumption's, or do I really have My head so far up My Butt that I'm looking at the world through My Navel?

Thank's for any input I can get on this.

Rick
Freedom is Never Free.
It's Paid for with the Blood of Patriot's

93 EXT Gladiator Conversion (The Grey Ghost)
2K LS AWD (Red Menace) converted to RWD
99 Olds Alero (Selling Part's if anyone's interested)

LiftedAWDAstro
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Re: Front Diff Delete?

Post by LiftedAWDAstro »

You got it right. You may get a "service AWD" light but it won't be an issue.
Current rides:
2013 Toyota Tundra DC 4x4
2008 Dodge Nitro 4x4
2005 Nissan Sentra 1.8S Special Edition

Mileage spreadsheet

Vans owned:
1986 Safari 2.5L 4 speed manual - scrapped
1995 Astro 2WD conversion 4.11 posi, shift kit, DHC rock rails - sold to Skippy
1998 Astro 4x4 D44, D60, NP231, full hydraulic system with 9k# Milemarker winch and snow plow - sold to Lockdoc
2003 Astro AWD all stock - traded for a 3/4 ton truck
2005 AWD, 4.10's - sold to skippy
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Festus33
I am merely driving my van
I am merely driving my van
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Location: Mukwonago

Re: Front Diff Delete?

Post by Festus33 »

Thank's Lifted!
I just kind of wanted to verify My thought's with people who share a passion for the Astro.
I'm starting the job tommorow morning, and figure it should only take Me 4-5 hr's.
Depend's on how many cup's of coffee, and smoke break's I take.

Every other person I've discussed this with, said a piece of black tape would cover that light up right quick. :D

Rick
Freedom is Never Free.
It's Paid for with the Blood of Patriot's

93 EXT Gladiator Conversion (The Grey Ghost)
2K LS AWD (Red Menace) converted to RWD
99 Olds Alero (Selling Part's if anyone's interested)

lockdoc
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Re: Front Diff Delete?

Post by lockdoc »

Sounds like you got it. I just can't stand to hear about it though. Such a shame to see an AWD go to waste.
Current:
01 AWD - Stock
98 AWD - Stock
Past:
93 4WD - 305 V8 - 5" lift - 31" tires
98 4WD DHC - 10" lift - 33" tires - Onboard air and Hydraulics - Snowplow
92 RWD - 350 V8 - lowered - 97 front clip
92 RWD - 350 V8 - converted to AWD - V6
91 AWD - 350 V8 - conversion van
94 RWD - 350 V8 - sons van
92 RWD - stock - sons van
93 RWD Shorty - project
89 RWD Shorty - parts van

ihatemybike
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Re: Front Diff Delete?

Post by ihatemybike »

I'm sure you stumbled upon my posts about Grumpy and it's front diff. Watch CL for other cheap AWD vans. I've pulled over $1200 worth of used parts from 25% Off (cost $225) and plan on grabbing a lot more. I plan on getting the engine started just to prove it still runs and drives. :) That should allow me to sell the engine to recoup my expenses.
Aaron

2005 Astro (Gandalf) - AWD, 4.3L, 3.42, 130k+ miles
1997 Astro (Grumpy - $250 Rally Van) - AWD, 4.3L, 3.42, LSD, 2" lift, 31" tires, 335k+ orig engine, $30 eBay fuel pump
Prev Astros:99,97,00,94,87,86

my4ateyour8
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Re: Front Diff Delete?

Post by my4ateyour8 »

Hi folks.
This is my first post to this forum but after reading this topic I have to comment or question. I thought that the awd transfer case used a viscous coupling between the front and rear outputs and would be damaged if a drive shaft was removed or even if different sized tires were used on the front and back. If so then removing the front driveshaft and/or diff would cause problems. Is that right?

lockdoc
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Re: Front Diff Delete?

Post by lockdoc »

my4ateyour8, Yes you are correct. You will eventually burnt out the transfer case. Not to mention your van will not stay put while in park if you are on any kind of hill. He should have this symptom already though if the front diff is broke. But of course that symptom would go away if the transfer case was toasted.
Current:
01 AWD - Stock
98 AWD - Stock
Past:
93 4WD - 305 V8 - 5" lift - 31" tires
98 4WD DHC - 10" lift - 33" tires - Onboard air and Hydraulics - Snowplow
92 RWD - 350 V8 - lowered - 97 front clip
92 RWD - 350 V8 - converted to AWD - V6
91 AWD - 350 V8 - conversion van
94 RWD - 350 V8 - sons van
92 RWD - stock - sons van
93 RWD Shorty - project
89 RWD Shorty - parts van

my4ateyour8
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I am merely driving my van
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Re: Front Diff Delete?

Post by my4ateyour8 »

Isn't it the same transfer case as in the Syclone and Typhoon? The Borg Warner something or other.

Brian C

ihatemybike
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Re: Front Diff Delete?

Post by ihatemybike »

IIRC, yes the same one.
Aaron

2005 Astro (Gandalf) - AWD, 4.3L, 3.42, 130k+ miles
1997 Astro (Grumpy - $250 Rally Van) - AWD, 4.3L, 3.42, LSD, 2" lift, 31" tires, 335k+ orig engine, $30 eBay fuel pump
Prev Astros:99,97,00,94,87,86

rlsllc
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Re: Front Diff Delete?

Post by rlsllc »

lockdoc wrote:Sounds like you got it. I just can't stand to hear about it though. Such a shame to see an AWD go to waste.


:withstupid:
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mdmead
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Re: Front Diff Delete?

Post by mdmead »

ihatemybike wrote:IIRC, yes the same one.
Well, technically no. The poster is talking about a '00 which is the electronically controlled case, not the earlier viscous unit in the Syclone/Typhoon and earlier vans.
Matt
Selah, WA
-96 GMC Safari AWD Hi-Top Conversion -->Stalled 5.3L swap & 5" lift
-74 Ford Bronco -->Far from perfect but mine!
-99 V-10 Ford Super Duty Super Cab 4x4 -->Stock with 285 Cooper ATs
-00 Ford Focus Wagon -->The Red Turd
-95 Ford 24' Class C Motorhome -->My big block sleeper
-07 Can-Am Outlander XT -->My yellow 4x4 quad for work & play
-04 Ski Doo REV Summit -->Still several chassis behind!


No new projects until the current ones are done!

LiftedAWDAstro
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Re: Front Diff Delete?

Post by LiftedAWDAstro »

Matt is right. The 2000 AWD t-case is a Borg-Warner 136 electronic case. So just pulling the "ATC" fuse disables it.
Current rides:
2013 Toyota Tundra DC 4x4
2008 Dodge Nitro 4x4
2005 Nissan Sentra 1.8S Special Edition

Mileage spreadsheet

Vans owned:
1986 Safari 2.5L 4 speed manual - scrapped
1995 Astro 2WD conversion 4.11 posi, shift kit, DHC rock rails - sold to Skippy
1998 Astro 4x4 D44, D60, NP231, full hydraulic system with 9k# Milemarker winch and snow plow - sold to Lockdoc
2003 Astro AWD all stock - traded for a 3/4 ton truck
2005 AWD, 4.10's - sold to skippy

ihatemybike
I plan to be buried in my van
Posts: 2224
Joined: Sun Jan 06, 2008 6:57 pm
Location: Elgin, IL

Re: Front Diff Delete?

Post by ihatemybike »

mdmead wrote:
ihatemybike wrote:IIRC, yes the same one.
Well, technically no. The poster is talking about a '00 which is the electronically controlled case, not the earlier viscous unit in the Syclone/Typhoon and earlier vans.
Doh! Usually I don't make those type of mistakes. Guess I should of looked at his van's year again.
Aaron

2005 Astro (Gandalf) - AWD, 4.3L, 3.42, 130k+ miles
1997 Astro (Grumpy - $250 Rally Van) - AWD, 4.3L, 3.42, LSD, 2" lift, 31" tires, 335k+ orig engine, $30 eBay fuel pump
Prev Astros:99,97,00,94,87,86
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BREAK
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Re: Front Diff Delete?

Post by BREAK »

Anyone know of an online manual or exploded view of the model transfer case found in an 00?
I've never had one apart and have no idea what actually makes it "electric".
Image Image

1995 2WD Astro 165K+
2000 AWD Astro 142K+, fully loaded

1995 Dodge 2500HD V10 4X4 reg cab 75K+, BFG all terrains (nice truck, everything is perfect on it)
1994 Honda Magna 4K+
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Festus33
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Location: Mukwonago

Re: Front Diff Delete?

Post by Festus33 »

Well I started tearing it down yesterday, and the Van has found it's name already, Red Menace!
It will be the bane of My existance, until I get this job done.
Nothing want's to come apart without major coaxing from the breaker bar, or the BFH.
So 4-5 hr's was being Real optimistic, probably be 3-5 day's now considering I have to work during the week.
Luckily I've got the Grey Ghost to get to and fro with.
Today the holdup is finding the pickle fork to break the ball joint's loose, also My back and knee's start bothering Me after about an hour or so.
We've got all kind's of tool's around here, the problem is finding them when you need them [-o<
I'll try an keep posting update's, as I have them.
Rick
Freedom is Never Free.
It's Paid for with the Blood of Patriot's

93 EXT Gladiator Conversion (The Grey Ghost)
2K LS AWD (Red Menace) converted to RWD
99 Olds Alero (Selling Part's if anyone's interested)
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