Auto vs AManual hubs

[thefirstzukman]

the donkey dick is on the front axle housing passanger side close to the middle. it screws into the axle if it is metal it is the old style if it is plastic it is the new style. i havn't dealt with dognostic on one for a couple of years so I can't remember the spacifics of what wires to check. I can tell you i have replaced at least 50 of them. if you want 4wd ut may be worth changing it as it will probably fix it. if it doesn't fix it then take it to a shop. the new one is worth having anyway becouse it is a instant locking accuator where to old one may take some time to lock in especialy if it is cold outside.

 

[Tacoma]

ahh, you GM guys are talking about later models.

There is no vacuum on my 89. There ARE, however, tiny hub elves that lock the hubs when they hear the clunking of the 4wd shifter.

Centrifugal force. Pffft.

 

[timpanogos]

ahh, you GM guys are talking about later models.

There is no vacuum on my 89. There ARE, however, tiny hub elves that lock the hubs when they hear the clunking of the 4wd shifter.

Centrifugal force. Pffft.

There's my problem, darn hub elves must have gone on vacation!

 

[ID Bronco]

My 2nd son is starting up his own concrete business ... kind of how I justified my new ram. Anyway he got the old gmc, and I would like to get the 4x4 working for him. Transfer case seems to switch in ok ... mechanical ... I figured there was some switch in there that did the auto lock of the hubs ... but guess it's all mechanical??

It may be the accuator. Mine was, there are kits to bypass it

 

[78mitsu]

Originally Posted by timpanogos
My 2nd son is starting up his own concrete business ... kind of how I justified my new ram. Anyway he got the old gmc, and I would like to get the 4x4 working for him. Transfer case seems to switch in ok ... mechanical ... I figured there was some switch in there that did the auto lock of the hubs ... but guess it's all mechanical?

What year is this "old" chevy, basically on chevy's the split is somewhere between 87 and 92, if it's IFS, it has the electric actuator, if it's older and doesn't have lockouts, it either has auto hubs or pucks in the front end.

 

[Tacoma]

Mine's an 89, with a straight axle and non-manual hubs.

How's that fit yer pipe, eh? hehehe

 

[devilbikerdude]

man i sure would love to switch to manual ubs, i dont like auto much at all. but it is not worth the money when i could spend maybe 400 more and upgrade to a d44 instead

 

[78mitsu]

Mine's an 89, with a straight axle and non-manual hubs.

How's that fit yer pipe, eh? hehehe

Gm used all the leftover parts until 1992 you can find a 1992 old body style 1 ton fuel injected w/ a 454, so not suprising.

 

[mbryson]

Gm used all the leftover parts until 1992 you can find a 1992 old body style 1 ton fuel injected w/ a 454, so not suprising.

That I want to see.