front diff question.
- Thread starter TyFun
- Start date
alwayscode390
pppssssshhhhhtttttttttttt
Re: front diff question.
Take out the front propshaft to go RWD , and put it back in to go AWD
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Take out the front propshaft to go RWD , and put it back in to go AWD
---Re: front diff question.
Haha. Not hardly what I had in mind. Thinking more in the lines of driving around in 2wd and when it was needed go awd.
Take out the front propshaft to go RWD , and put it back in to go AWD
Haha. Not hardly what I had in mind. Thinking more in the lines of driving around in 2wd and when it was needed go awd.
graham1524
Well-known member
Re: front diff question.
search waller and what he did on a differential
search waller and what he did on a differential
THEMADTYPH00N
Active member
Re: front diff question.
You need a passenger side front axle & tube from a 4WD front diff. Then you can use a kit that replaces the vacuum actuator with a cable to turn it on and off. This will also only work with a open front differential.
You need a passenger side front axle & tube from a 4WD front diff. Then you can use a kit that replaces the vacuum actuator with a cable to turn it on and off. This will also only work with a open front differential.
Re: front diff question.
I think this is what I'm looking for. Where would I buy a kit? I have an 84 parts vehicle here just waiting on me haha.
I think this is what I'm looking for. Where would I buy a kit? I have an 84 parts vehicle here just waiting on me haha.
Re: front diff question.
I am suspicious that mine is sticking anyway. Feels like it wants to walk a little in tight turns but I have a couple other issues to fix before I can really tell. Got a bad wheel bearing loose and making crackling noise plus some steering linkage that is worn out that needs to be replaced. I guess that a stuck viscous over time would cause my other problems wouldn't it?
I am suspicious that mine is sticking anyway. Feels like it wants to walk a little in tight turns but I have a couple other issues to fix before I can really tell. Got a bad wheel bearing loose and making crackling noise plus some steering linkage that is worn out that needs to be replaced. I guess that a stuck viscous over time would cause my other problems wouldn't it?
Horsehammerr
New member
Re: front diff question.
Can you run an AWD Front Differential with a 4x4 Transfercase and have selective AWD?
Can you run an AWD Front Differential with a 4x4 Transfercase and have selective AWD?
JSM
Active member
Re: front diff question.
You can run a 4x4 front diff with AWD transfer case and do that easier.
You can run a 4x4 front diff with AWD transfer case and do that easier.
Re: front diff question.
4wd is not AWD. In AWD there is a little slip between the front and rear tires, in a 4wd there is none. A couple folks around here have blown up front diffs when the coupler went bad and locked the front wheels to the back wheels, effectively making it a 4wd instead of an AWD.
A few guys have taken the t-case apart and found that running without a front driveshaft puts pressure on the VC and likely shortens its life. It could be fine when you put the front driveshaft back in (or lock the 4x4 diff), or it could be bad and cause your diff to blow up.
4wd is not AWD. In AWD there is a little slip between the front and rear tires, in a 4wd there is none. A couple folks around here have blown up front diffs when the coupler went bad and locked the front wheels to the back wheels, effectively making it a 4wd instead of an AWD.
A few guys have taken the t-case apart and found that running without a front driveshaft puts pressure on the VC and likely shortens its life. It could be fine when you put the front driveshaft back in (or lock the 4x4 diff), or it could be bad and cause your diff to blow up.
bigmileage
Member
Re: front diff question.
I've done a few conversions on 4x4 S10s to eliminate the front vacuum actuator; it's a pretty popular conversion the S10 community. It's just the changes discussed above to the diff in a normal S10.
So yes, you can run an AWD configured front diff and just use a selectable t-case; you're just running the front diff in a always locked.
I've done a few conversions on 4x4 S10s to eliminate the front vacuum actuator; it's a pretty popular conversion the S10 community. It's just the changes discussed above to the diff in a normal S10.
So yes, you can run an AWD configured front diff and just use a selectable t-case; you're just running the front diff in a always locked.
Re: front diff question.
No, you can't. Not unless you never drive on pavement with the t-case locked in.
In an AWD system the viscus clutch allows a small bit of slip between the front and rear tires and preventing binding. If you put a 4wd t-case in then there is no slip between the front and rear tires and you will rapidly blow something up once you start driving on pavement.
The computer controlled 2wd/4wd/AWD transfer case is a possibility, but it requires a computer to run it, and well the lag in the AWD engagement sucks and would likely break something.
No, you can't. Not unless you never drive on pavement with the t-case locked in.
In an AWD system the viscus clutch allows a small bit of slip between the front and rear tires and preventing binding. If you put a 4wd t-case in then there is no slip between the front and rear tires and you will rapidly blow something up once you start driving on pavement.
The computer controlled 2wd/4wd/AWD transfer case is a possibility, but it requires a computer to run it, and well the lag in the AWD engagement sucks and would likely break something.
Re: front diff question.
You have a fundamental misunderstanding of what the components in the systems due, and how they operate. Not criticizing, just observing, we were all here once. Hopefully this will clear up your intuition.
In the Sy/Ty AWD system the front diff is always engaged, and the transfer case is always engaged. Within the Sy/Ty/bravada case there is a viscous coupler that allows the needed slip between the front wheels, and the rear as they travel different distances around a curve/turn.
In a regular S-Series 4WD system, both the transfer case, and the front differential are "selectable". They can be engaged or disengaged. The front diff "disengages" by means of disconnecting the right front axle shaft (within the diff housing) from the differential.
The setup you want is the 4WD S-series front diff housing, and the Sy/Ty transfer case. This allows the truck to be run as an AWD vehicle when the front diff is engaged, and a 2wd when the front diff is disengaged. It also retains the center viscous clutch within the transfer case that prevents the "hopping" you get in a 4WD system during a turn on dry pavement.
Hopefully that makes some sense, and is a complete enough description to get you "moving forward" with your plans. (pun intended)
You have a fundamental misunderstanding of what the components in the systems due, and how they operate. Not criticizing, just observing, we were all here once. Hopefully this will clear up your intuition.
In the Sy/Ty AWD system the front diff is always engaged, and the transfer case is always engaged. Within the Sy/Ty/bravada case there is a viscous coupler that allows the needed slip between the front wheels, and the rear as they travel different distances around a curve/turn.
In a regular S-Series 4WD system, both the transfer case, and the front differential are "selectable". They can be engaged or disengaged. The front diff "disengages" by means of disconnecting the right front axle shaft (within the diff housing) from the differential.
The setup you want is the 4WD S-series front diff housing, and the Sy/Ty transfer case. This allows the truck to be run as an AWD vehicle when the front diff is engaged, and a 2wd when the front diff is disengaged. It also retains the center viscous clutch within the transfer case that prevents the "hopping" you get in a 4WD system during a turn on dry pavement.
Hopefully that makes some sense, and is a complete enough description to get you "moving forward" with your plans. (pun intended)
Horsehammerr
New member
Re: front diff question.
I think I understand ? With the AWD transfer case I can select 2WD and my front Diff. will be disconnected. Will the 4WD front Diff. be a problem when running AWD ?
I think I understand ? With the AWD transfer case I can select 2WD and my front Diff. will be disconnected. Will the 4WD front Diff. be a problem when running AWD ?
jeepruby04
New member
Re: front diff question.
The only difference in an AWD and 4x4 diff is the axle disconnect. The t case, more specific, the viscous coupler is the reason you don't get the " axle hop/tire scrub" on dry pavement.
There are several issues you should consider like cooking your t case by running in 2wd, or parking on an incline in 2wd your truck will roll away even in park.
The only difference in an AWD and 4x4 diff is the axle disconnect. The t case, more specific, the viscous coupler is the reason you don't get the " axle hop/tire scrub" on dry pavement.
There are several issues you should consider like cooking your t case by running in 2wd, or parking on an incline in 2wd your truck will roll away even in park.
Horsehammerr
New member
Re: front diff question.
Why would the case cook in 2wd and what has the t case got to do with the "in park pin " ?
Why would the case cook in 2wd and what has the t case got to do with the "in park pin " ?