Factory Lockers in high range? (1 Viewer)

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

Joined
Apr 16, 2005
Threads
1
Messages
6
Location
Grand Forks AFB, ND
I am new to the site, and have hit the search feature. I am installing the 7 pin option, and the CDL button to my 97. The question I have is, is there anyway to by-pass the low range only for the lockers? I live in an area that sees quite a bit of snow, and high range is a better option while being locked up in rear. Thanks in Advance
 
Yes, when you lock the center with the CDL switch the front and rear locker become available no matter if high or low.

Pin 7 is not required for this, pin 7 buys you low without the automatic locking of the CDL, basically giving all control of the CDL to the CDL switch.

I have never driven in snow so take this for what it is worth (nothing), but wouldn’t a locked rear make the truck loose on ice?
 
On ice, your right, lockers won't help one bit, and make things worse. However in DEEP snow, like when ya get 12-18 inch drifts overnight on little hick country farm roads, and its -40 with wind chill....you want all the help you can get!
 
OK! I LIED!

I went for a leisurely drive up into the mountains today and decided to engage the CDL and lockers in high range to see if they would work since I had read this thread this morning. Well, the CDL engaged immediately as usual, and the lockers kept flashing as usual. I drove about 3 miles, and literally JUST as I hit the end of the road and was reaching for the CDL button to disengage I heard the all too familiar "click" of one of the lockers engaging. I looked down and sure enough the rear locker was engaged. I was very surprised by this because they have never engaged in high range before. I decided to drive around some more to see if the front would engage, and sure enough after another 5 minutes or so it clicked in. THIS HAS NEVER HAPPENED BEFORE!

What is very odd is that when I engage them in low range it never takes more than a few seconds for both lockers to engage. I'm kinda confused by this.

Ary
 
Arya Ebrahimi said:
What is very odd is that when I engage them in low range it never takes more than a few seconds for both lockers to engage. I'm kinda confused by this.

Ary


In a prior thread about this same topic I made the same mistake you did. I stated my lockers would not engage in high range. Then I went for a stroll to confirm it wouldn't work and what do you know - they worked! :doh: It must have taken several hundred yards for them to engage though. I thought this was odd and likely why I assumed they wouldn't work in high. Like you, I never gave it enough time.

My experience with low range is the same as yours. Both axles lock right up almost instantaneously. Oh well, another cruiser mystery.
 
RavenTai said:
Pin 7 is not required for this, pin 7 buys you low without the automatic locking of the CDL, basically giving all control of the CDL to the CDL switch.


I installed CDL switch but didn't do pin 7 mod. I am able to engage/disengage CDL in both high and low ranges with the switch. I didn't try very hard to figure out this behaviour.
 
Arya Ebrahimi said:
Raven, I hate to disagree with you, but I feel you are incorrect about not needing the Pin 7 mod.

Ary


Although not this time I have been wrong many times before I will be wrong again some time in the future. Please feel free to disagree with me at any time my info does not jive with yours and we will get to the bottom of it.

Was the road you traveled on straight? it takes a difference in RPM between the left and right axle shafts on one axle (turning) for the lockers to engage, when working properly this makes them slow to engage when you are testing them but when you actually get in a spot where you need them they engage quite quickly due to spinning of one axle shaft. If there are problems with the lockers they may be slow when you need them as well.

With the engine off (so you can hear) but key on engage the lockers, each motor should audibly spin for about 1-2 seconds and then stop but the lights will still blink, once the motor stops it has loaded a spring and is waiting for the splines to line up, when the splines line op the spring engages the locker with a clunk, the light will go from blinking to solid,

another way to test this is to put the T-case in neutral (block other axle tires) and lift the tire of the axle you want to test and spin the tire by hand the locker will engage and the wheel will stop locked to the tire on the ground. Be aware with the T-case in neutral the parking gear will not stop the vehicle exterior means must be used such as the parking brake if you are testing the front axle or blocking the front axle if you are testing the rear.


medtro said:
I installed CDL switch but didn't do pin 7 mod. I am able to engage/disengage CDL in both high and low ranges with the switch. I didn't try very hard to figure out this behaviour.


That does not sound right, without the pin 7 mod the CDl should lock when the T-case to set to low and stay that way until you go back to high. Perhaps the L4 indicator switch is malfunctioning and not telling the CDL controller that you are in low (basically the same thing as pin 7 mod)
 
Raven, it was a winding gravel road, I really have no idea why it took so long. I'm quite familiar with the lockers and how long they take to engage as I use them at least twice a week :D

Sorry for wrongly fully calling you out. :whoops:

Ary
 
Thanks guys....loks like I'll be installing more hardware. Gotta love that!! :cool:
 
Arya Ebrahimi said:
Raven, it was a winding gravel road, I really have no idea why it took so long. I'm quite familiar with the lockers and how long they take to engage as I use them at least twice a week :D

Sorry for wrongly fully calling you out. :whoops:

Ary


not sure what to make of the slow engagement :confused:

I am here to learn, no reason to be sorry :beer:
 
Ary it does sound strange that engagement is quicker in low box than high with the CDL engaged or only at all in low, I presume that the switch is installed correctly. At what speed do you engage the CDL because I think that may be an issue as it is speed sensitive.


(How does one quote more than one answer at a time other than pasting as Raven Tai earlier?)
 
Gold Finger said:
How does one quote more than one answer at a time other than pasting as Raven Tai earlier?


copy and paste is only way I know of,
 
RavenTai said:
That does not sound right, without the pin 7 mod the CDl should lock when the T-case to set to low and stay that way until you go back to high. Perhaps the L4 indicator switch is malfunctioning and not telling the CDL controller that you are in low (basically the same thing as pin 7 mod)

It is possible. The CDL locked just fine when in LOW before I installed CDL switch.
 
Arya Ebrahimi said:
Raven, it was a winding gravel road, I really have no idea why it took so long. I'm quite familiar with the lockers and how long they take to engage as I use them at least twice a week :D

Sorry for wrongly fully calling you out. :whoops:

Ary


What speed were you traveling? If it was over 5 MPH the diffs would be inhibited from locking.
 
cruiserdan said:
What speed were you traveling? If it was over 5 MPH the diffs would be inhibited from locking.

AHA! and Mr. Dan solves the mystery once again. I was probably traveling about 20mph. I had no idea they were inhibited from locking at more than 5mph. That would explain everything. The rear locking as I came to a stop, the front not engaging until I came to a stop again further down the road.... Yup, all makes sense now. Cool beans, now I don't have to shift into Lo-range to turn the lockers on in high :cool:

Ary
 
Do think about why Toyota would choose to include that feature. They are trying to tell you something about what may happen to a vehicle that suddenly locks up at speeds above 5mph and also the inherent dangers of operating a locked vehicle at higher speeds.
 
RavenTai said:
copy and paste is only way I know of,

Arhh yes but the enclosing box some times there are many of them on an answer how is that done? sorry I now this is not technical as in 80's tech.
:confused:
 
Gold Finger said:

some text

but the enclosing box some times there are many of them on an answer

you mean like this?

how is that done?


when you take away the [ ] and replace with { } it looks like:


{QUOTE=Gold Finger} Arhh yes {/quote}

some text

{quote} but the enclosing box some times there are many of them on an answer{/quote}

you mean like this?

{quote} how is that done? {/QUOTE}
 

Users who are viewing this thread

Back
Top Bottom