so my 98 is having hub problems, they dont lock %100 of the time. i think im gonna do the Vacum hub fix thats on the how-to's. but im a little worried about permenantly locking my hubs. wont that hurt my gas milage,and cause unwanted wear and tear, having the hubs always locked?

 

i did the mod to my truck....i really did not see any change in that stuff.....if u are worried about that just get the AVM's 100 times better then those cheapy PVH.

 

Get AVM hubs. http://www.tellico4x4.com/product_in...ducts_id/26509

 

Im kinda tight on money right now, so new hubs will have to wait a while for my truck. Did the how-to change anything at all though, did the 4wd engage better for you atleast?

 

tell u the truth i did not see any change intell i swapped for the AVMs the PVH just plain out suck....all that mod does is permently lock the pvh so when u put it in 4wd u dont have to worry about it not locking but when i did it i still didnt think they locked.....the avms are lonely 100 bucks and they are a bang for ur buck mod....just save up and get those they will also save ur front end from wear since the cv shafts stop turning and i believe the driveshaft stops turning as well i could be wrong but i think it does

 

There is a way of modifying the pvh hubs to be manual, I can't find it buy you remove the screen and push against the white plastic part like a button. You should really get AVM hubs, I did and experienced 1/2 - 1 mpg improvement, and the improvement in steering alone is worth the cost. My pvh hubs were locked 100% of the time and my cv shafts and driveshaft were starting to wear out.