Add a toggle switch to get 2 low?

[letitsnow]

Usually when I push on something like a man, I then end up fixing it like a man...

 

[Dover]

Probably a strange question on this topic but how difficult would it be to put a rear axle from a 4x4 in a 2wd truck with the cable for the lock? Seems like an easy way to get a locking dif....


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[Bret]

Probably a strange question on this topic but how difficult would it be to put a rear axle from a 4x4 in a 2wd truck with the cable for the lock? Seems like an easy way to get a locking dif....


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I assume you mean using rear axle as a front axle. Its within the realm of possibility : https://www.powernationtv.com/two-minute-tech/2min-467/convert-a-14-bolt-to-a-steering-axle
Honestly not worth it unless you want a hell of a wheeling rig. You would still have to do a solid axle swap anyway, so you'd be better off using a Dana 44 or 60. I imagine it would be cheaper after you consider the conversion parts and fabrication required.

These axles typically have manual locking hubs too, so to get 2w low, put the T-case in 4 low and just dont lock the hubs.

 

[Dover]

Actually meant using rear axle as rear axle for simple switch to locking when needed. If the fabrication wouldn’t be much I’m sure a used stock 4x4 rear axle would be cheaper than installing a locking rear dif in my 2wd


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[Supercharged111]

Usually when I push on something like a man, I then end up fixing it like a man...

If brute force isn't working, you're not using enough. If it breaks, it needed replacing anyway.

 

[Bret]

The rear axles in 4x4 and 2wd are the same generally. The "lock" we are referring too is a keyed slip ring type deal that connects one of the front drive shafts to the gears in the differential. GMT-400 never came with a true locking differential, front or rear, just a G80 that locks when your wheels really get spinning. For a locking rear diff, you need to get the locking gears from an aftermarket vender 2wd or 4x4.

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[Dover]

The rear axles in 4x4 and 2wd are the same generally. The "lock" we are referring too is a keyed slip ring type deal that connects one of the front drive shafts to the gears in the differential. GMT-400 never came with a true locking differential, front or rear, just a G80 that locks when your wheels really get spinning. For a locking rear diff, you need to get the locking gears from an aftermarket vender 2wd or 4x4.

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Damn lol was hoping it would be easy.


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[454cid]

The rear axles in 4x4 and 2wd are the same generally. The "lock" we are referring too is a keyed slip ring type deal that connects one of the front drive shafts to the gears in the differential. GMT-400 never came with a true locking differential, front or rear, just a G80 that locks when your wheels really get spinning. For a locking rear diff, you need to get the locking gears from an aftermarket vender 2wd or 4x4.

The G80 is locking, it's just normally open instead of normally locked like a Detroit is. They only work to about 25 mph.

 

[Shorty01GMC]

In the past I have unplugged the front actuator before shifting to 4x4... that will give you 2wd low range... I don’t remember what site, gmfs, fsc, gmt400, pirate, but years ago I read a thread about what wires to cut... I’m sure with a meter and a helper you can figure out the hot or ground and cut it adding a switch to break the circuit

 

[Shorty01GMC]

G80 rear has nothing to do with 2wd low range...