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Premium Member
'05 Chevy TB EXT
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5,671 Posts
Discussion Starter · #5 ·
I sortta feel that with the axle disconnect, it should work out just fine in the front diff on our vehicles.

Maybe not so much in a straight K5-type axle with manual hubs. I drive around all winter with my hubs in LOCKED position on my K5, choosing to use 2- or 4-WD via the floor shift ... so with locked hubs and no slider, they may clunk a lot even if the transfer case is in 2 anyway.
 

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Premium Member
'05 Chevy TB EXT
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5,671 Posts
Discussion Starter · #7 ·
You want the locker in the front axle? I missed that the first time.

I know folks do that, but I think it's more for off-road including competition than for winter/snow/ice traction. A locked front axle isn't going to steer very well under the best circumstances, both spinning front tires will make directional control...interesting.

I've never had the front differential case apart. Can you put a "lunchbox locker" into one of them without messing with the gear mesh adjustments?
Yup in the front ---- like my K5. I only use chains on the front too since with the steering wheels pulling, you can go where you point the steering wheel.
... and another thing --- there's ZERO room in the back wheel wells for tire chains --- as it is, the inner plastic liners get gentle rub marks on them from the rear tires as is.​

The K5 has full-time Posi, the rear has the Gov-Lock. I have never regretted having the hardest pull in the front because if you're just pushing from the rear, you start plowing the front tires and you won't be able to control your direction very well - especially on black ice and hard crowned roads.
An interesting sidebar about having both differentials pulling is that if you for some reason, only had one working brake --- the braking effect would still be on at all 4 wheels.​

The only actual concern I have is the abruptness of the lock-in application ... but with the axle disconnect, it doesn't matter what the lunch box does --- right?

I'm not saying there isn't gonna be a somewhat changed driving style, but I rarely use 4WD on the TB anyway --- so it's only gonna be necessary in and under bad situations ---- not cruising at 80 MPH on Hwy90.

I'm also very capable of setting lash and tooth patterns on differentials --- I've done hundreds -- and although the lunch box is SUPPOSED to go in without messing with the R&P --- I can do whatever is necessary.
 

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Premium Member
'05 Chevy TB EXT
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5,671 Posts
Discussion Starter · #9 ·
I think right after the thaw-out, I'll drop the diff and reseal and service it and then decide if I wanna put the Lunch Box in it or not.

In the meantime, I'll get in touch with whomever makes and markets that unit, to find if they either have or don't have something that's gonna fit.
 
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