Lo 4 questions

[Rednexus]

Did you replace front and read driveshafts?

Rear only. Front seemed to be fine. I'd expect most GXs to need them by 150K or so unless they have been perfectly maintained.

 

[K Dub]

We'll see. I might be conflating it with the 80, or I might just be totally wrong. It wouldn't be the first time.

I was totally wrong! Always a safe bet, and never bet against @Acrad . That fella knows his stuff.

 

[185]

yup i do the regular engage the 4wd kit every month. the clunk still happens. I do see some amsoil rep on the taco forums extol the virtues of running their amsoil mtf in the xfer case, to smooth things out but never tried it.

 

[mantutuli]

2nd Start on your ‘21 is here..10-19 is in a steering wheel menu

https://lexusgxor.com/_media/general:2021_gx_460_owners_manual.pdf

View attachment 3707974

thanks you!!! lol - i wondered what that was for

 

[mantutuli]

To answer one question that no one has posted yet, YES, you must disengage your 4Lo before you drive on tarmac, paved, cement, hard roads.
Personally, and this is from my old manual locking days, I also drive in reverse about 10 or 20 feet to make sure my front is completely unlocked. But I also have front and rear lockers, so I'm also ensuring that the ARB lockers are also unlocked.

I also do what K-Dub does with manual sifting up and down when in 4Lo since there isn't very much speed range in between gears in 4Lo and the variable terrain, I'm constantly shifting up and down.

And just to throw in a little pro tip, when you're in 4Lo and going over really rough terrain (rock gardens, ruts, stumps, etc.), at maybe 5 mph or so, use your left foot to brake and right foot to throttle. It will smooth out the jerkyness and keep you from bouncing and bottoming out on something hard. It takes a little practice but once you get used to it, it becomes second nature.

thanks for the info!

 

[Acrad]

Not taking into account “aftermarket” lockers and not really any reason to …..but it is safe to drive a stock 460 in 4L on pavement as long as you disengage the CDL before heading onto paved or other related hard surfaces. As long as you are driving straight you should be fine for a short distance.

I was reminded above of years with auto locking and manual hubs on vehicles. The battle of engaging 4WD on my father’s old ‘80 Chevy pickup.. it was like trying to find the combo to a bank vault to engage or disengage. I think it uses a NP205… he still has the old thing and purchased it new.

 

[mantutuli]

Not taking into account “aftermarket” lockers and not really any reason to …..but it is safe to drive a stock 460 in 4L on pavement as long as you disengage the CDL before heading onto paved or other related hard surfaces. As long as you are driving straight you should be fine for a short distance.

I was reminded above of years with auto locking and manual hubs on vehicles. The battle of engaging 4WD on my father’s old ‘80 Chevy pickup.. it was like trying to find the combo to a bank vault to engage or disengage. I think it uses a NP205… he still has the old thing and purchased it new.

what would happen if you drove a very very short distance? when i test drove it I had cdl and 4lo engaged separately and together, just to test it to make sure it worked. Maybe like 1 minute, probably not even that long

 

[Hiluxforever]

what would happen if you drove a very very short distance? when i test drove it I had cdl and 4lo engaged separately and together, just to test it to make sure it worked. Maybe like 1 minute, probably not even that long

Don't ever do that, it could break things. It's very abusive as it causes a lot more stress on every piece in the drivetrain

 

[Acrad]

I'm more or less talking about you've just come onto a paved surface ahead from off-roading or testing straight line 25 feet in a parking lot

The big no-no IMO is cranking the wheel on pavement and the forces created there by the tire scrub

I can't remember how far it was but remember a member on CL who had a wife bump the button and drove like 25 miles or more in city and highway driving with CDL locked ..yikes

 

[Hiluxforever]

I'm more or less talking about you've just come onto a paved surface ahead from off-roading or testing straight line 25 feet in a parking lot

The big no-no IMO is cranking the wheel on pavement and the forces created there by the tire scrub

I can't remember how far it was but remember a member on CL who had a wife bump the button and drove like 25 miles or more in city and highway driving with CDL locked ..yikes

Exactly and you will feel it starting to bind when you turn

 

[185]

Forgot to add credit where its deserved, the monthly locker/4Lo engagement maintenance tip was from @Acrad.

I think it got a little tricky one time, when i was trying to do it monthly, and i dont remember what happened and whether i induced it, but the center locker kept flashing when attempting to turn it off. I put it into drive, and moved forward and magically unlocked and stopped flashing.

 

[Hiluxforever]

Yep, i

Forgot to add credit where its deserved, the monthly locker/4Lo engagement maintenance tip was from @Acrad.

I think it got a little tricky one time, when i was trying to do it monthly, and i dont remember what happened and whether i induced it, but the center locker kept flashing when attempting to turn it off. I put it into drive, and moved forward and magically unlocked and stopped flashing.

Prefer to roll to a stop going slightly uphill and then roll back just a bit and it should
Come out every time.

 

[re_guderian]

That is not normal for CDL to automatically engage. Actually first time I have heard someone report that occurring on their 460… although I think that is normal behavior on the 80 and 100 series.

We'll see. I might be conflating it with the 80, or I might just be totally wrong. It wouldn't be the first time.

Yep, 80 series was the last to tie CDL and 4LO together (as it was the first in the US to have full-time 4WD). The "Pin 7 Mod" was a popular way to decouple the two, and have 4lo without CDL. They were separate functions on the 100 series starting in '98.

 

[mantutuli]

I'm more or less talking about you've just come onto a paved surface ahead from off-roading or testing straight line 25 feet in a parking lot

The big no-no IMO is cranking the wheel on pavement and the forces created there by the tire scrub

I can't remember how far it was but remember a member on CL who had a wife bump the button and drove like 25 miles or more in city and highway driving with CDL locked ..yikes

thanks - yeah, i read somewhere that the worst thing for cdl is turning you wheels on pavement, nothing about driving, that 25 feet for testing per se, as you mentioned

 

[mantutuli]

yup i do the regular engage the 4wd kit every month.

Are you using the word "kit" like the brits do/are you british? So as in something is kitted out, or you're military basic load out you carry in your backpack it your kit, or something else? Are you just saying go off road and engage lo 4 and/or CDL to keep the oil/grease moving so it doesnt get "stale" in on spot?

 

[185]

Are you using the word "kit" like the brits do/are you british? So as in something is kitted out, or you're military basic load out you carry in your backpack it your kit, or something else? Are you just saying go off road and engage lo 4 and/or CDL to keep the oil/grease moving so it doesnt get "stale" in on spot?

on gxes the only "4wd" features or tools or kit are the center diff lock And 4Lo. You dont need to offroad, as acrad and others mentioned, every month keep the steering center, place in neutral, turn on the cdl and 4lo, shift into drive, move a few feet forward, then back in neutral and turn everything off. As you stated, keeps everything in motion so nothing gets stuck.

 

[mantutuli]

on gxes the only "4wd" features or tools or kit are the center diff lock And 4Lo. You dont need to offroad, as acrad and others mentioned, every month keep the steering center, place in neutral, turn on the cdl and 4lo, shift into drive, move a few feet forward, then back in neutral and turn everything off. As you stated, keeps everything in motion so nothing gets stuck.

thank you