Grinding Shift on the fly - Pirate4x4.Com : 4x4 and Off-Road Forum

msla taco · 09-08-2007, 09:15 PM

I have a 95 tacoma with a 2.7 5 speed, and can't shift on the fly anymore. It will engage if I stop. Whats up??????

Shefron · 09-08-2007, 10:26 PM

Quote:

Originally Posted by msla taco

I have a 95 tacoma with a 2.7 5 speed, and can't shift on the fly anymore. It will engage if I stop. Whats up??????

you talking with using the clutch, if so your syncro's are toast.

Its a dumb question but I have meet some people that didn't use the clutch.

broncoboy351 · 09-09-2007, 12:07 AM

Do you have different gearing in the front than in the rear? different size tires front and rear? This could cause the drive shaft to spin at different speeds which will prevent you from going into 4wheel on the fly. Also do you have locking hubs or hub flanges? One of you locking hubs could be f@cked.

msla taco · 09-09-2007, 06:28 AM

Clutch is in
same size tires
and I'll check if my hubs are locked

Thanks for the advise

hawaiianbro · 09-09-2007, 11:11 AM

Just so you know, you can't shift on the fly into 4lo.

Tacoma_Kyle · 09-10-2007, 12:02 PM

Wasnt shift on the fly-4wd only in auto hubbed vehicles?

Cant really call a truck on the fly-4wd when the hubs dont lock.

Fatalaczach · 09-12-2007, 04:08 PM

Quote:

Originally Posted by Tacoma_Kyle

Wasnt shift on the fly-4wd only in auto hubbed vehicles?

Cant really call a truck on the fly-4wd when the hubs dont lock.

If you have your hubs locked already you can shift on the fly. If they arent then it will just grind like crazy.

98taco4x · 09-20-2007, 07:41 AM

what would be the point of shift on the fly if you had to get out and lock in the hubs

OP you have been doing the shift on the fly to much and it has gotten worn out.

Dickfoster · 09-20-2007, 01:26 PM

It's like these. Most Tacos came with ADD. With ADD the diff is spinning all the time because the driver side axle is aways engaged and turning. When you shift the front driveshat and ADD the diff is spinning so everything can mesh up. However, if you have manual hubs and the hubs are not locked the diff is just sitting there static.

msla taco · 09-20-2007, 07:59 PM

I realized that I diden't have my hub locked. I'm stupid

Thanks

surftaco · 09-26-2007, 07:23 AM

Quote:

Originally Posted by 98taco4x

what would be the point of shift on the fly if you had to get out and lock in the hubs

OP you have been doing the shift on the fly to much and it has gotten worn out.

If your driving during the winter and you know there is a possability for snow along the way, you lock your hubs before you leave and leave the t-case in 2wd untill you need the 4wd (at which point your shift on the fly)

Sure all the parts in the front end are spinning but there not under power so the truck still drives as a 2wd.

I do this with my 4runner.

09-08-2007, 09:15 PM	#1 (permalink)
msla taco Registered User Join Date: Sep 2007 Member # 99284 Posts: 8	Grinding Shift on the fly I have a 95 tacoma with a 2.7 5 speed, and can't shift on the fly anymore. It will engage if I stop. Whats up??????

09-09-2007, 11:11 AM	#5 (permalink)
hawaiianbro Registered User Join Date: Oct 2004 Member # 36648 Location: Diamondhead, MS Posts: 140	Just so you know, you can't shift on the fly into 4lo. Last edited by hawaiianbro; 09-09-2007 at 11:11 AM.

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09-09-2007, 12:07 AM	#3 (permalink)
broncoboy351 Registered User Join Date: Mar 2002 Member # 10480 Location: Santa Cruz, Ca Posts: 517	Do you have different gearing in the front than in the rear? different size tires front and rear? This could cause the drive shaft to spin at different speeds which will prevent you from going into 4wheel on the fly. Also do you have locking hubs or hub flanges? One of you locking hubs could be f@cked.

09-09-2007, 06:28 AM	#4 (permalink)
msla taco Registered User Join Date: Sep 2007 Member # 99284 Posts: 8	Clutch is in same size tires and I'll check if my hubs are locked Thanks for the advise

09-10-2007, 12:02 PM	#6 (permalink)
Tacoma_Kyle Registered User Join Date: Aug 2005 Member # 52753 Location: Klamath Falls, OR Posts: 112	Wasnt shift on the fly-4wd only in auto hubbed vehicles? Cant really call a truck on the fly-4wd when the hubs dont lock.

09-20-2007, 07:41 AM	#8 (permalink)
98taco4x Registered User Join Date: Mar 2006 Member # 68676 Location: Knoxville, TN Posts: 63	what would be the point of shift on the fly if you had to get out and lock in the hubs OP you have been doing the shift on the fly to much and it has gotten worn out.

09-20-2007, 01:26 PM	#9 (permalink)
Dickfoster Banned Join Date: Sep 2002 Member # 14006 Location: Los Gatos, Peoples Republic of California Posts: 350	It's like these. Most Tacos came with ADD. With ADD the diff is spinning all the time because the driver side axle is aways engaged and turning. When you shift the front driveshat and ADD the diff is spinning so everything can mesh up. However, if you have manual hubs and the hubs are not locked the diff is just sitting there static.

09-20-2007, 07:59 PM	#10 (permalink)
msla taco Registered User Join Date: Sep 2007 Member # 99284 Posts: 8	I realized that I diden't have my hub locked. I'm stupid Thanks