cable actuated D30 4x axle switch - Pirate4x4.Com : 4x4 and Off-Road Forum

sfazr2 · 12-26-2001, 11:11 PM

I already did a search for "vacuum" and there wasn't anything specific enough for me in there.

I know you can do the Posilock system for $200, but I've heard you can use a manual choke cable just as well from a parts store. Does anyone have any pics or detail info on this.

I have an s-10 with a D30 conversion, and I've connected the vacuum while in 4 hi and lo, but the yoke still turns while sitting still. Is this right?? The yoke shouldn't move, right??

I connected the GM vacuum line, but either it doesn't have enough pull, or the diaphram's shot. Also, I see 2 vacuum ports on the jeep axle, but I only have one from the original truck.???? Is one pull and the other push?? Both pull?? Help

P&T Jeeps · 12-27-2001, 07:41 AM

just permanently "engage" it and forget about it...

BillaVista · 12-27-2001, 01:45 PM

http://billyxj.tripod.com/2low/2low.htm

WideJ · 12-27-2001, 03:38 PM

just bite the bullet and buy the warn full floater conversion. I wheeled with the vacuum thingie and it sucks! When you shut off the engine, the front could come out of 4 wheel drive! No Thanks!

Kicker · 12-27-2001, 03:57 PM

How do you "permanently engage" it?? I would like to do that to mine till I toss it in the spring.

WideJ · 12-27-2001, 04:10 PM

a problem with permanently engaging it is if you're locked in the front, turning on the street is very difficult, and even if you're open, your front driveshaft will always spin... potential for more vibrations.

but to permanently engage it, you're going to tear into the little vacuum box thing thats on the axle. When you take the cover off you should be able to see a collar that slides over the two axles that engages the front axle. so maybe weld it??

Kicker · 12-27-2001, 05:15 PM

I'm not locked in front, and won't be. And since every other part of the front is spinning, I don't think that one more piece is gonna hurt the vibes too much (could be wrong, have been many times before

)

Thanks

Steve

P&T Jeeps · 12-27-2001, 05:25 PM

All you need to do is open the vacuum box on the tube and pull out any junk in there other than the shift fork. Stack washers or cut a sleve to keep the shift fork permanently engaging the two shafts. If you want do away with the diaphram too (I would) you will need to caulk up the end where it was. Works well and will only cost you a buck...

SOXJ · 12-27-2001, 06:03 PM

You were not clear if you are using the stock chevy thermo thing. You mentioned d30 with vaccum, Napa has a t-handle that locks, it's 9 foot long for $23.00, fab this cable to your vaccum or shift fork, tada. Now you can shift in and out of four wheel drive.

The Californian · 12-27-2001, 06:58 PM

Quote:

Originally posted by SOXJ
You were not clear if you are using the stock chevy thermo thing. You mentioned d30 with vaccum, Napa has a t-handle that locks, it's 9 foot long for $23.00, fab this cable to your vaccum or shift fork, tada. Now you can shift in and out of four wheel drive.

That work on the YJ d30? Im sure the vacuum is screwed and Im sick of dealing with Jeeps BS. Really wish i could shell out the 200+ for the posilock

sfazr2 · 12-27-2001, 07:45 PM

Basicly I would've prefered to get it to work like the original s-10 setup, but it seems thats not going to work. I guess I'll cut it open a little and attatch some sort of cable to it. I just want to get it working so I can use it for what I orginally did the swap for!!

12-26-2001, 11:11 PM	#1 (permalink)
sfazr2 Registered User Join Date: Oct 2001 Member # 7756 Location: Sacramento, Kaleeforneeia Posts: 435	cable actuated D30 4x axle switch I already did a search for "vacuum" and there wasn't anything specific enough for me in there. I know you can do the Posilock system for $200, but I've heard you can use a manual choke cable just as well from a parts store. Does anyone have any pics or detail info on this. I have an s-10 with a D30 conversion, and I've connected the vacuum while in 4 hi and lo, but the yoke still turns while sitting still. Is this right?? The yoke shouldn't move, right?? I connected the GM vacuum line, but either it doesn't have enough pull, or the diaphram's shot. Also, I see 2 vacuum ports on the jeep axle, but I only have one from the original truck.???? Is one pull and the other push?? Both pull?? Help

12-27-2001, 07:41 AM	#2 (permalink)
P&T Jeeps Granite Guru Join Date: Mar 2001 Member # 3916 Location: south Posts: 2,826	just permanently "engage" it and forget about it... __________________ TJ; ARB'd & ChroMo'd 1-tons; 42" IROK's; Atlas 4.3; 4-linked, 106" WB... The Build

12-27-2001, 03:38 PM	#4 (permalink)
WideJ Rock God Join Date: Nov 2001 Member # 8335 Location: Burbank, CA Posts: 1,892	just bite the bullet and buy the warn full floater conversion. I wheeled with the vacuum thingie and it sucks! When you shut off the engine, the front could come out of 4 wheel drive! No Thanks! __________________ Partially Erect YJ

12-27-2001, 03:57 PM	#5 (permalink)
Kicker Registered User Join Date: Jul 2001 Member # 5975 Location: Michigan Posts: 407	How do you "permanently engage" it?? I would like to do that to mine till I toss it in the spring. __________________ 1988 YJ under extensive modification "It's beer thirty somewhere, I just know it!"

12-27-2001, 04:10 PM	#6 (permalink)
WideJ Rock God Join Date: Nov 2001 Member # 8335 Location: Burbank, CA Posts: 1,892	a problem with permanently engaging it is if you're locked in the front, turning on the street is very difficult, and even if you're open, your front driveshaft will always spin... potential for more vibrations. but to permanently engage it, you're going to tear into the little vacuum box thing thats on the axle. When you take the cover off you should be able to see a collar that slides over the two axles that engages the front axle. so maybe weld it?? __________________ Partially Erect YJ

12-27-2001, 01:45 PM	#3 (permalink)
BillaVista Registered User Join Date: Mar 2001 Member # 3547 Location: Ottawa, Canada Posts: 6,719	http://billyxj.tripod.com/2low/2low.htm

12-27-2001, 05:15 PM	#7 (permalink)
Kicker Registered User Join Date: Jul 2001 Member # 5975 Location: Michigan Posts: 407	I'm not locked in front, and won't be. And since every other part of the front is spinning, I don't think that one more piece is gonna hurt the vibes too much (could be wrong, have been many times before ) Thanks Steve __________________ 1988 YJ under extensive modification "It's beer thirty somewhere, I just know it!"

12-27-2001, 05:25 PM	#8 (permalink)
P&T Jeeps Granite Guru Join Date: Mar 2001 Member # 3916 Location: south Posts: 2,826	All you need to do is open the vacuum box on the tube and pull out any junk in there other than the shift fork. Stack washers or cut a sleve to keep the shift fork permanently engaging the two shafts. If you want do away with the diaphram too (I would) you will need to caulk up the end where it was. Works well and will only cost you a buck... __________________ TJ; ARB'd & ChroMo'd 1-tons; 42" IROK's; Atlas 4.3; 4-linked, 106" WB... The Build

12-27-2001, 06:03 PM	#9 (permalink)
SOXJ Registered User Join Date: Nov 2001 Member # 8104 Location: Southern Oregon Posts: 49	You were not clear if you are using the stock chevy thermo thing. You mentioned d30 with vaccum, Napa has a t-handle that locks, it's 9 foot long for $23.00, fab this cable to your vaccum or shift fork, tada. Now you can shift in and out of four wheel drive.

12-27-2001, 07:45 PM	#11 (permalink)
sfazr2 Registered User Join Date: Oct 2001 Member # 7756 Location: Sacramento, Kaleeforneeia Posts: 435	Basicly I would've prefered to get it to work like the original s-10 setup, but it seems thats not going to work. I guess I'll cut it open a little and attatch some sort of cable to it. I just want to get it working so I can use it for what I orginally did the swap for!!

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