How fast in 4wd?

demon666 · 10-21-2009, 04:25 PM

I dont know if this is the right spot to post this or not, but i was wondering does anybody know how fast the front suspention (sp?) can go befor it starts to fail? Caus around here i take the truck up on strip jobs and loggin roads and the like and we can hit 60mph or better. Iv been tryin to keep it under that though.

Daveman2 · 10-21-2009, 04:27 PM

I know in my manual it says to stay below 55MPH in 4LO, that might be for 4HI as well.

demon666 · 10-21-2009, 04:39 PM

my freind used to have '02 automatic and he had to have his in 4wd all the time, and we had it 70 mph out on interstates. But that was only a time or 2, it dint hurt it as far as i can tell. But idk if the suspenstion could take that every day onstock parts.

neo71665 · 10-21-2009, 06:52 PM

I've always heard 55 in 4 hi and 35 in 4 lo so thats what I stick to.

90blueS10 · 10-21-2009, 06:56 PM

in the winter i drive 40-50 on snow in 4 hi

Daveman2 · 10-21-2009, 06:58 PM

well it's not the suspension that will go, it will be the transfercase or some part of the 4WD components spinning too fast or creating too much speed difference between the tires at speed

demon666 · 10-21-2009, 10:42 PM

Thats what i ment, idk what i was thinking with suspenstion... I soulda aid drive train. I just talked to my friend and he said that he thought that the transfer case and front drive shaft ect. were suposed to be uptill about 75-80. Im not so sure though.

donaldps10 · 10-21-2009, 11:01 PM

well the bravadas are awd with the same front diff and so that should be fine... t-case, not sure...

ZR2Owner? · 10-22-2009, 01:00 AM

The only problem would be bind up on high traction surfaces. Should be fine on dirt.

Daveman2 · 10-22-2009, 02:37 AM

Quote: Originally Posted by donaldps10

well the bravadas are awd with the same front diff and so that should be fine... t-case, not sure...

yeah the t-case is the issue, differentials should be fine

nd4spd18 · 10-22-2009, 03:01 AM

Should be ok as long as it's not a high traction surface like pavement. In part time 4x4 trucks like these the front diff is geared very slightly higher than the rear to increase traction and the front is locked together in 4x4, so the wheels need to be able to slip a little.

10-21-2009, 04:25 PM	#1
demon666 Registered User Age: 20 Join Date: Oct 2009 Posts: 11 Location: User is: OffLine	How fast in 4wd? I dont know if this is the right spot to post this or not, but i was wondering does anybody know how fast the front suspention (sp?) can go befor it starts to fail? Caus around here i take the truck up on strip jobs and loggin roads and the like and we can hit 60mph or better. Iv been tryin to keep it under that though.
	[Reply w/Quote]

10-21-2009, 04:27 PM	#2
Daveman2 Road Racing Blazer Age: 22 Join Date: May 2004 Posts: 4,561 Location: Santa Cruz, CA User is: OffLine	Re: How fast in 4wd? I know in my manual it says to stay below 55MPH in 4LO, that might be for 4HI as well.
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10-21-2009, 04:39 PM	#3
demon666 Registered User Age: 20 Join Date: Oct 2009 Posts: 11 Location: User is: OffLine	Re: How fast in 4wd? my freind used to have '02 automatic and he had to have his in 4wd all the time, and we had it 70 mph out on interstates. But that was only a time or 2, it dint hurt it as far as i can tell. But idk if the suspenstion could take that every day onstock parts.
	[Reply w/Quote]

10-21-2009, 06:52 PM	#4
neo71665 4x4 v6 blazer Age: 29 Join Date: Oct 2004 Posts: 5,002 Location: rison arkansas User is: OffLine	Re: How fast in 4wd? I've always heard 55 in 4 hi and 35 in 4 lo so thats what I stick to.
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10-21-2009, 06:56 PM	#5
90blueS10 Calico 1st Gen Age: 17 Join Date: Sep 2007 Posts: 3,853 Location: Ottawa, Kansas User is: OffLine	Re: How fast in 4wd? in the winter i drive 40-50 on snow in 4 hi
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10-21-2009, 06:58 PM	#6
Daveman2 Road Racing Blazer Age: 22 Join Date: May 2004 Posts: 4,561 Location: Santa Cruz, CA User is: OffLine	Re: How fast in 4wd? well it's not the suspension that will go, it will be the transfercase or some part of the 4WD components spinning too fast or creating too much speed difference between the tires at speed
	[Reply w/Quote]

10-21-2009, 10:42 PM	#7
demon666 Registered User Age: 20 Join Date: Oct 2009 Posts: 11 Location: User is: OffLine	Re: How fast in 4wd? Thats what i ment, idk what i was thinking with suspenstion... I soulda aid drive train. I just talked to my friend and he said that he thought that the transfer case and front drive shaft ect. were suposed to be uptill about 75-80. Im not so sure though.
	[Reply w/Quote]

10-21-2009, 11:01 PM	#8
donaldps10 bags=fags Age: 22 Join Date: Mar 2009 Posts: 229 Location: Dallas, TX User is: OffLine	Re: How fast in 4wd? well the bravadas are awd with the same front diff and so that should be fine... t-case, not sure...
	[Reply w/Quote]

10-22-2009, 01:00 AM	#9
ZR2Owner? Registered User Join Date: Dec 2008 Posts: 37 Location: User is: OffLine	Re: How fast in 4wd? The only problem would be bind up on high traction surfaces. Should be fine on dirt.
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10-22-2009, 02:37 AM	#10
Daveman2 Road Racing Blazer Age: 22 Join Date: May 2004 Posts: 4,561 Location: Santa Cruz, CA User is: OffLine	Re: How fast in 4wd? Quote: Originally Posted by donaldps10 well the bravadas are awd with the same front diff and so that should be fine... t-case, not sure... yeah the t-case is the issue, differentials should be fine
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10-22-2009, 03:01 AM	#11
nd4spd18 I am sofa king we tod did Age: 22 Join Date: Jan 2007 Posts: 416 Location: PA User is: OffLine	Re: How fast in 4wd? Should be ok as long as it's not a high traction surface like pavement. In part time 4x4 trucks like these the front diff is geared very slightly higher than the rear to increase traction and the front is locked together in 4x4, so the wheels need to be able to slip a little.
	[Reply w/Quote]