Remove shaft for towing
Oct 14, 2009 | 09:11 AM
#1
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Joined: Mar 2007
Posts: 93
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From: Fairfax, Va
Remove shaft for towing
Hey guys,
I am buying a 96 taco 4x4 manual transmission with a bad motor. I need to get it home somehow. I have a 4x4 96 Taco 3.4L or a 98 pathfinder 3.3L that will do the towing via a tow dolly. I read here https://www.yotatech.com/forums/f120...estion-148304/
that I need to disconnect the rear drive shaft...
-how do I do it?
-and is it reallly necessary if I am towing it back 50 miles.
-Can I avoid the removal if I tow with the rear of the dead truck on the dolly and lock the fronts by pulling out the key?
-Any other ideas that would help me avoid it. I don't have access to a flatbed.
Thanks in Advance.
I am buying a 96 taco 4x4 manual transmission with a bad motor. I need to get it home somehow. I have a 4x4 96 Taco 3.4L or a 98 pathfinder 3.3L that will do the towing via a tow dolly. I read here https://www.yotatech.com/forums/f120...estion-148304/
that I need to disconnect the rear drive shaft...
-how do I do it?
-and is it reallly necessary if I am towing it back 50 miles.
-Can I avoid the removal if I tow with the rear of the dead truck on the dolly and lock the fronts by pulling out the key?
-Any other ideas that would help me avoid it. I don't have access to a flatbed.
Thanks in Advance.
Oct 14, 2009 | 09:16 AM
#2
Safest to disconnect the rear shaft at the axle. A pair of 14mm wrenches (one with a long handle) will do it. 4 bolts there and just tie the shaft up and out of the way (OK to leave the transfer case end connected). Otherwise t-case in 2H, transmission in N.
Last edited by 4Crawler; Oct 14, 2009 at 09:50 AM.
Oct 14, 2009 | 09:51 AM
#4
Oct 14, 2009 | 09:52 AM
#5
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Posts: 5,377
Likes: 5
With an automatic I understand why you'd disco the rear driveshaft, BUT with standard, why would it matter if the DS was connect if you kept in neutral? There's no engine-driven tranny oil pump.
And why 4H 4Crawler?
And why 4H 4Crawler?
Oct 14, 2009 | 10:00 AM
#6
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Joined: Apr 2007
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From: ATL!
why is there an N at the T-Case anyway?
hey Roger, why can't he just shift it to N at the T-Case? what would occur? does the crankshaft have to be turning for proper lube at the t-case or something like that?
and if N isn't for allowing the truck to roll separated from the power train, what IS a good use for N? just minor pulls, but not long distance/hwy?
i never really thought about this, but since you brought it up, i'm interested in what the facts are.
thanx for your ongoing expertise, man!
Tj
and if N isn't for allowing the truck to roll separated from the power train, what IS a good use for N? just minor pulls, but not long distance/hwy?
i never really thought about this, but since you brought it up, i'm interested in what the facts are.
thanx for your ongoing expertise, man!
Tj
Oct 14, 2009 | 10:03 AM
#7
As noted, 2H is what you want to keep the front shaft from turning (I mistyped 4H and corrected that in my post). 2H and N in the tranny do let the t-case spin and circulate oil but the best setup is to pull the rear shaft (this is what Marlin recommends), also keeps from racking up miles on the odometer.
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Oct 14, 2009 | 10:05 AM
#8
hey Roger, why can't he just shift it to N at the T-Case? what would occur? does the crankshaft have to be turning for proper lube at the t-case or something like that?
and if N isn't for allowing the truck to roll separated from the power train, what IS a good use for N? just minor pulls, but not long distance/hwy?
i never really thought about this, but since you brought it up, i'm interested in what the facts are.
thanx for your ongoing expertise, man!
Tj
and if N isn't for allowing the truck to roll separated from the power train, what IS a good use for N? just minor pulls, but not long distance/hwy?
i never really thought about this, but since you brought it up, i'm interested in what the facts are.
thanx for your ongoing expertise, man!
Tj
- http://www.4crawler.com/4x4//TLCA_Tr...ech.05.03.html
And in t-case neutral, the t-case input (and oil slinger) are not spinning and you run the risk of the output shaft bearing running dry.
Oct 14, 2009 | 10:16 AM
#9
These threads cover most of the issues:
- http://www.pirate4x4.com/forum/showt...light=flat+tow
- http://www.pirate4x4.com/forum/showt...arlin+flat+tow
And as far as t-case neutral (using a stock shifter), simply look at how you get to N, 2H->4H->N, so you are in 4H with front and rear output connected together and the input shaft disconnected. This is probably the worst possible condition to flat tow in as you are spinning the front and rear drive components and not turning the input shaft to throw gear oil around.
- http://www.pirate4x4.com/forum/showt...light=flat+tow
- http://www.pirate4x4.com/forum/showt...arlin+flat+tow
Originally Posted by Marlin Crawler:
On all auto chain driven and manual gear driven t/cases, if it is towed in two wheel drive, the output shaft will turn, but there will be no way for the oil at the bottom of the case to get to the top where the output shaft is. On the chain driven cases, the input shaft turns the planetary housing which drives the oil pump. Gear driven cases use the input gear and low range gears to throw oil on the inside of the housing that collects the oil via gutters and directs it to the rear of the case by gravity. Both style of cases, must have the input shaft spinning to lube the output shaft, speedo gears, and rear seal of the t/case. The rear driveshaft must be removed.
Marlin
On all auto chain driven and manual gear driven t/cases, if it is towed in two wheel drive, the output shaft will turn, but there will be no way for the oil at the bottom of the case to get to the top where the output shaft is. On the chain driven cases, the input shaft turns the planetary housing which drives the oil pump. Gear driven cases use the input gear and low range gears to throw oil on the inside of the housing that collects the oil via gutters and directs it to the rear of the case by gravity. Both style of cases, must have the input shaft spinning to lube the output shaft, speedo gears, and rear seal of the t/case. The rear driveshaft must be removed.
Marlin
Last edited by 4Crawler; Oct 14, 2009 at 10:20 AM.
Oct 14, 2009 | 10:35 AM
#11
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Joined: May 2008
Posts: 4,591
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From: Montana
Read the above posts, they pretty much cover it. How is it done? By putting it in neutral...
With the rear tires on the ground, you will be spinning the rear drive shaft. The rear driveshaft is connected to the t-case. Putting the tranny in nuetral has no effect on this. The rear shaft is still connected to the t-case, no? Of course. Crawl around under your truck and get an understanding of how things work and it makes more sense. Whether you put the tranny in nuetral or the t-case in neutral or both, if the rear shaft is connected, it is spinning the t-case.
With the rear tires on the ground, you will be spinning the rear drive shaft. The rear driveshaft is connected to the t-case. Putting the tranny in nuetral has no effect on this. The rear shaft is still connected to the t-case, no? Of course. Crawl around under your truck and get an understanding of how things work and it makes more sense. Whether you put the tranny in nuetral or the t-case in neutral or both, if the rear shaft is connected, it is spinning the t-case.
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