Can I>?
- Thread starter twin74s
- Start date
syclomatic
Syclone #2481
Re: Can I>?
We have local cruise nights once and a while, would it be ok to take off the prop shaft for a night, to have a little RWD fun :lol: ?
We have local cruise nights once and a while, would it be ok to take off the prop shaft for a night, to have a little RWD fun :lol: ?
wantingasy
Active member
Re: Can I>?
Are you serious?syclomatic said:
tbauer03
TRBOBOX
Re: Can I>?
i drove mine for about 2 months without the shaft in place, it was a tire spinning machine yet lots of fun. anyway about 4 years later no signs of damage to anything from driving without the shaft. A word of caution, when parking use the parking/e brake bc without the front prop shaft the truck will slowly roll down hills when you are away and you will come back and notice your truck is not in the same place not good for you or anyone else.
i drove mine for about 2 months without the shaft in place, it was a tire spinning machine yet lots of fun. anyway about 4 years later no signs of damage to anything from driving without the shaft. A word of caution, when parking use the parking/e brake bc without the front prop shaft the truck will slowly roll down hills when you are away and you will come back and notice your truck is not in the same place not good for you or anyone else.
wantingasy
Active member
Re: Can I>?
Not to mention that that picture was just put up.....lol....Yeah you can drive in 2wd.Tydriver said:
Tydriver
TurboLS6 Powa'
Re: Can I>?
Jeff and I did the simultaneous burnouts at the GB '01 Nats. To prepare for the burnouts the (front) shaft was removed from each truck, upon removal it was found that they both were twisted. We both elected to NOT reinstall them, I drove from Great Bend KS to Indy IN and around in Indy for probably 2-3 months without the front shaft installed. Jeff drove back to Louisville area from Great Bend KS and I dont know how much longer after that. Other than the lack of traction I didnt notice any negative results, (well besides the increased wear on my ZR-1s but it was fun laying down 2x 12" wide stripes everywhere
).
Obviously your mileage may vary and dont go calling me if your T-case hurls all over the freeway becase you drove .1 miles with the front shaft out.
Like previously mentioned, USE YOUR PARKING BRAKE EVERYWHERE YOU PARK THE TRUCK WITH THE FRONT SHAFT OUT.
It will roll away if on a hill and in park. BTDT :rant:
tbauer03 said:
Jeff and I did the simultaneous burnouts at the GB '01 Nats. To prepare for the burnouts the (front) shaft was removed from each truck, upon removal it was found that they both were twisted. We both elected to NOT reinstall them, I drove from Great Bend KS to Indy IN and around in Indy for probably 2-3 months without the front shaft installed. Jeff drove back to Louisville area from Great Bend KS and I dont know how much longer after that. Other than the lack of traction I didnt notice any negative results, (well besides the increased wear on my ZR-1s but it was fun laying down 2x 12" wide stripes everywhere
Obviously your mileage may vary and dont go calling me if your T-case hurls all over the freeway becase you drove .1 miles with the front shaft out.
Like previously mentioned, USE YOUR PARKING BRAKE EVERYWHERE YOU PARK THE TRUCK WITH THE FRONT SHAFT OUT.
It will roll away if on a hill and in park. BTDT :rant:
Zewerr
ToeJam is a Poindexter
Re: Can I>?
I think you first need to understand that the viscous coupling in the transfer case will be constantly working when under load, as there's load on the rear axle, but zero load on the front axle. I think it will shorten the life of the coupling. I did drive without a front propshaft one time, to diagnose my bad viscous coupling. And I did get on it once or twice. Everytime I did, I could tell the coupling was slipping, and not allowing all of the power to the rear wheels. So the truck was only as fast as the viscous coupler would let it be.
I think you first need to understand that the viscous coupling in the transfer case will be constantly working when under load, as there's load on the rear axle, but zero load on the front axle. I think it will shorten the life of the coupling. I did drive without a front propshaft one time, to diagnose my bad viscous coupling. And I did get on it once or twice. Everytime I did, I could tell the coupling was slipping, and not allowing all of the power to the rear wheels. So the truck was only as fast as the viscous coupler would let it be.
Tydriver
TurboLS6 Powa'
Re: Can I>?
Soo what your saying here is that even tho the front shaft is out on my truck on the Dyno that it should have posted lower HP/TQ figures as a result of not using an AWD dyno ?
Umm yeah OK, if you say so, the thing is my truck posted exactly what GM said it was rated at (280hp) with 105,000 miles on the 100% STOCK truck with stock turbo and tune..
Every time I 'got on it" with my front shat removed the only thing I could tell that was slipping was both rear tires against the pavement.
Truth be told, the manual says dont drive without the front shaft, legally thats what GM says, reality is, there are plenty of trucks out there that have logged a bunch of miles without the front shaft.. While anything mechanical can fail, typically in these trucks the T-case is fairly robust, I dont read or hear alot about T-case failures on these trucks even with the beating we dish to them.
Again my :2cents:
Zewerr said:
Soo what your saying here is that even tho the front shaft is out on my truck on the Dyno that it should have posted lower HP/TQ figures as a result of not using an AWD dyno ?
Umm yeah OK, if you say so, the thing is my truck posted exactly what GM said it was rated at (280hp) with 105,000 miles on the 100% STOCK truck with stock turbo and tune..
Every time I 'got on it" with my front shat removed the only thing I could tell that was slipping was both rear tires against the pavement.
Truth be told, the manual says dont drive without the front shaft, legally thats what GM says, reality is, there are plenty of trucks out there that have logged a bunch of miles without the front shaft.. While anything mechanical can fail, typically in these trucks the T-case is fairly robust, I dont read or hear alot about T-case failures on these trucks even with the beating we dish to them.
Again my :2cents:
wantingasy
Active member
Re: Can I>?
:werd: And the only transfer case problem I've read about was from Robert's SY, which is quite obvious why it might have gone wrong.........
:werd: And the only transfer case problem I've read about was from Robert's SY, which is quite obvious why it might have gone wrong.........
syclomatic
Syclone #2481
Re: Can I>?
Yeah, I'm gona take mine off next weekend, and drive it for about an hour. I'll post how it goes.
Yeah, I'm gona take mine off next weekend, and drive it for about an hour. I'll post how it goes.
tbauer03
TRBOBOX
Re: Can I>?
when i dynod mine w/o the prop shaft in stock form minus crossover tube and filter it made 285hp and 404 lb-ft, if i am losing something in the viscous coupling it just makes me more impressed with what these trucks do, but i feel the numbers are accurate and very minimum loss occurs through slippage.
when i dynod mine w/o the prop shaft in stock form minus crossover tube and filter it made 285hp and 404 lb-ft, if i am losing something in the viscous coupling it just makes me more impressed with what these trucks do, but i feel the numbers are accurate and very minimum loss occurs through slippage.
Loeryder
New member
Re: Can I>?
The AWD transfer cases differ between the Sy and the Ty.
The Sy is actually a BW 1372, 27 spline output shaft. dual planetary.
The Ty is the BW 4472 32 spline and triple planetary, so it is considered the stronger of the two..
Viscous coupler is the same.
The viscous coupler is not going to slip much if at all.
It is so sensitive that by the time the output shaft spins one revolution it has already locked.
If it does slip it was bad before you pulled the shaft.
I have done it both on the dyno and driven a couple hundred miles on the street and I wont do it again unless need be.
No more 2wd dynos for me period.
There was a significant difference in the #s between 2wd and awd dynos.
So for tuning purposes I would say stick to one or the other.
AWD preferred.
The AWD transfer cases differ between the Sy and the Ty.
The Sy is actually a BW 1372, 27 spline output shaft. dual planetary.
The Ty is the BW 4472 32 spline and triple planetary, so it is considered the stronger of the two..
Viscous coupler is the same.
The viscous coupler is not going to slip much if at all.
It is so sensitive that by the time the output shaft spins one revolution it has already locked.
If it does slip it was bad before you pulled the shaft.
I have done it both on the dyno and driven a couple hundred miles on the street and I wont do it again unless need be.
No more 2wd dynos for me period.
There was a significant difference in the #s between 2wd and awd dynos.
So for tuning purposes I would say stick to one or the other.
AWD preferred.