IFS Auto Hub ?

[Cube Dweller]

Bought a 91 4 runner over the w/e. Price was great, 130K miles, ENGINE was replaced by Toyota dealer at 93K due to infamous HG issue. Since the LC will be the family mobile for the next 4-5 years, I don't plan on wheeling it much.

Soooo, I want to build the 4runner. I'll leave it IFS for the time being until it becomes a limitation, if ever (yes I know, poor articulation etc etc etc). This one has auto hubs, anyone know what's involved in converting to manual? Do I just need to find ifs manual hubs? Any ideas on the compatible years?

I'm going to sell the '86 p/u so I don't wanna start robbing parts off that.

thanks,
tony

 

[woody]

it's just that simple...pull off the autos (actually, drive plates) and replace with a dial-model.

I used Superwinches on mine.

Offroad, it won't a bit of difference....it's a drive plate, it always turns...on highway, it will allow your front half-shafts to NOT spin, and reduce wear on the front drivetrain, and a minimal (if noticable) decrease in drag with an even less noticable increase in fuel mileage.

IMO, not worth the time and expense unless you have a front locker and a serious desire to not have your shafts spinnin.... (ie: big lift)

 

[Cube Dweller]

Thanks Woody.

 

[cruiseroutfit]

Does it actally have auto hubs or drive flanges?

Woody covered it all, jsut a side note... Around here (Utah) the OEM Aisin IFS hubs are easy to score in the wrecking yards, etc and not too expensive (~$40) a pair.

Wish Tacomas were as easy to convert...

 

[freeamerica]

I thought the ADD system on the 90 and newer 4-runners, trucks, etc was a different monster than the earlier auto hubs (84-89). Since the ADD uses the vacuum acuated system for the more modern "shift-on-the-fly", will the manual hubs bolt right on, or do you have to disable the ADD system as well?

 

[woody]

my old 95 minitruck had the ADD system....sliding collar on the DS basically....

I disabled mine when it finally quit working correctly. However, IMO, leave it intact if it works....lock the hubs in and you still get all the advantages in poor weather of shift on the fly 4wd....great for snowy roads.

 

[Cube Dweller]

I found Chris Geiger's write up, he does a great explanation of how it works and how to modify it if need be. Think I'll leave it alone if it works.

I may have a lead on an IFS dif with 4.88's and Superwinch hubs/disconnects from someone doing a SAS. I decided I don't have the cash to spend on a SAS right now, and with so many people doing it it seems like there are a bunch of IFS lift kits out there used.