AdvanceTrac...
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Laughing Gas
Joined: May 2004
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AdvanceTrac...
Please help me to understand...our trucks (2019 F350 6.2 in case it matters) have AdvanceTrac and open differentials...we have the option of an electronic locking rear axle...so, if we were to be on the slipperiest of slippery surfaces, even throw in a slight ascending grade ahead to make the sutuation worse, and do not have the rear locking axle, we are not going far, right?... one wheel per axle is going to spin with the other sitting stationary, correct? ( If we had traction control tge spinning wheel would slow down but the opposite wheel would remain stationary...am I right? ) Please advise, thanks.
Laughing Gas
Joined: Oct 2018
Posts: 767
Likes: 78
From: NC
Please help me to understand...our trucks (2019 F350 6.2 in case it matters) have AdvanceTrac and open differentials...we have the option of an electronic locking rear axle...so, if we were to be on the slipperiest of slippery surfaces, even throw in a slight ascending grade ahead to make the sutuation worse, and do not have the rear locking axle, we are not going far, right?... one wheel per axle is going to spin with the other sitting stationary, correct? ( If we had traction control tge spinning wheel would slow down but the opposite wheel would remain stationary...am I right? ) Please advise, thanks.
Tuned
Joined: Sep 2016
Posts: 389
Likes: 24
An open diff can at times spin both wheels however it’s not very often. Open diffs usually spin the wheel
with the least amount of grip. Traction control does help a little bit but it won’t be as effective as a locker or limited slip. That being said in icey conditions I prefer an open dif 4wd system so i don’t lose the rear of the truck when the limited slip decides to lock up while making a turn.
with the least amount of grip. Traction control does help a little bit but it won’t be as effective as a locker or limited slip. That being said in icey conditions I prefer an open dif 4wd system so i don’t lose the rear of the truck when the limited slip decides to lock up while making a turn.
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Laughing Gas
Joined: May 2004
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Likes: 18
Thanks, DeputyDiesel, my point is that we cannot get a limited slip (or traction control, I believe, AdvanceTrac is for stability only), we get open differentials with the added option of a locking rear...the locking rear is great when needed, but cannot be used except within limited speeds, the other 99+% of the time we have nothing but opposite diagonal single drive wheels...
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Laughing Gas
Joined: May 2004
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ATC Crazy - where does that occur? where does the 'splice' occur, at the rear end, under the dash, at the control ****, under the hood...
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Hotshot
Joined: Jun 2003
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From: SW VA
You can either tie into the wire behind the **** on the dash, find it under the hood on the firewall, or run it all the way back to the axle (or however far you can trace it back). All you need to do is supply the locker's + wire with 12V power.
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Logistics Pro
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Please help me to understand...our trucks (2019 F350 6.2 in case it matters) have AdvanceTrac and open differentials...we have the option of an electronic locking rear axle...so, if we were to be on the slipperiest of slippery surfaces, even throw in a slight ascending grade ahead to make the sutuation worse, and do not have the rear locking axle, we are not going far, right?... one wheel per axle is going to spin with the other sitting stationary, correct? ( If we had traction control tge spinning wheel would slow down but the opposite wheel would remain stationary...am I right? ) Please advise, thanks.
WHY?
The answer was simple and I knew it as soon as I got out of the goo.
Lockers: Both wheels locked f/r and I just spun going no where.
Open axles: What was happening was that my tires did not all just spin, but rather only one did on each axle at a time. But it was a near constant shifting of driving wheels and like you can often (in 4x4) use your steering wheel to go back and forth with your front wheels shifting traction and moving mud or whatever.
NOTE: This was a highly unusual and rare circumstance and in my over 50 years of off roading across the world this was the ONLY time it ever happened to me.
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Laughing Gas
Joined: May 2004
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17 Oaks - you said: my tires did not all just spin, but rather only one did on each axle at a time you are saying that one wheel, always the same wheel, spun per axle, right, or are you saying that the wheels on an axle alternated spinning one at a time ?
Logistics Pro
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The first car I ever owned had a limited slip and they all have had LS or lockers since.
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