ifs hub conversion

rover18 · Sep 12, 2011

Two more questions and hopefully my last for this discussion:

1) Will the manual locking hubs on the ifs work on the straight axle and vise versa? I have longfield axles and hub gears already.

2) Do any of the rear ifs axles up to '95 come stock with disc brakes?

WHITE TRASH1 · Sep 12, 2011

1. Yes the only difference between solid axle and its hubs is the placement of the wheel flanges. Use straight axle wheel seals and you'll be fine.

2. No

44newman · Sep 12, 2011

IFS Locking hubs. My research shows the IFS locking hub will not expose the end of the axle shaft to get the snap ring on.
If you look at Longfield HERE web there are two diff hub gears, one to use 30sp outers in IFS hubs, and standard strait axle hub gears.
Some have made IFS hubs work by using the bolt and washer in the end of the axle like IFS does and some have machined about 3/16 off a the IFS hub gear to expose the end of the axle to get the snap ring on.
Here are some threads about it.
http://www.pirate4x4.com/forum/showthread.php?t=472148&page=2
http://www.pirate4x4.com/forum/showthread.php?t=650353

WHITE TRASH1 · Sep 12, 2011

44newman said:
IFS Locking hubs. My research shows the IFS locking hub will not expose the end of the axle shaft to get the snap ring on.
If you look at Longfield HERE web there are two diff hub gears, one to use 30sp outers in IFS hubs, and standard strait axle hub gears.
Some have made IFS hubs work by using the bolt and washer in the end of the axle like IFS does and some have machined about 3/16 off a the IFS hub gear to expose the end of the axle to get the snap ring on.
Here are some threads about it.
http://www.pirate4x4.com/forum/showthread.php?t=472148&page=2
http://www.pirate4x4.com/forum/showthread.php?t=650353

I'm pretty sure he is talking about the bearing hubs not the lockouts... Your info is correct but he mentioned having Bobby's gears already so I think he's wondering if the lockouts will bolt up.

longfield · Sep 12, 2011

44newman said:
IFS Locking hubs. My research shows the IFS locking hub will not expose the end of the axle shaft to get the snap ring on.
If you look at Longfield HERE web there are two diff hub gears, one to use 30sp outers in IFS hubs, and standard strait axle hub gears.
Some have made IFS hubs work by using the bolt and washer in the end of the axle like IFS does and some have machined about 3/16 off a the IFS hub gear to expose the end of the axle to get the snap ring on.
Here are some threads about it.
http://www.pirate4x4.com/forum/showthread.php?t=472148&page=2
http://www.pirate4x4.com/forum/showthread.php?t=650353

Thats not a good idea you lose contact area and that makes the weak link weaker.

44newman · Sep 12, 2011

WHITE TRASH said:
I'm pretty sure he is talking about the bearing hubs not the lockouts... Your info is correct but he mentioned having Bobby's gears already so I think he's wondering if the lockouts will bolt up.

I thought that might be the case. No gray areas now.

longfield said:
Thats not a good idea you lose contact area and that makes the weak link weaker.

I agree, thats just stuff I found on pirate.
By the way, Thanks for the replacement birfs.
Who will carry on your legacy.

84Toyota4x4 · Sep 12, 2011

Im pretty sure this is exactly what was just covered, but I want to be sure...

To use the IFS locking hubs on a solid axle, you just have to change the inner hub gear to get the 30 splines, right? I know they're shaped differently too, but I thought it was more or less just the number of splines on the inner gear? Or, is it the shape of the hub body (IFS is concave more than SA I believe) that causes the axle to not stick through the hub far enough as was just mentioned?

I did some hub swapping with my solid axle truck when I rebuilt the front axle and now I'm wondering WTF I did. I know I had some SA hubs from my stock axle and some IFS hubs from a parts truck. I think my plan was to take the IFS hubs and put my stock SA hub gears in them as "trail spares" because I have the Longfield hub gears in my original SA hubs.

I know I have hubs on my truck with Longfield gears and they work, and I have a pair of hubs torn down on the work bench with my old gears next to them. I just cant remember what the hell I did swapping parts around.

~T.J.

EDIT: Crap! Now that Im thinking about it, I did a conversion on my girlfriends 87 4Runner from Warn manual hubs back to IFS Aisin manual hubs after she broke a Warn. Now I REALLY forgot whats what because I think I used hub parts from the work bench to make that work too...

CHOP SHOP · Sep 12, 2011

84Toyota4x4 said:
EDIT: Crap! Now that Im thinking about it, I did a conversion on my girlfriends 87 4Runner from Warn manual hubs back to IFS Aisin manual hubs after she broke a Warn. Now I REALLY forgot whats what because I think I used hub parts from the work bench to make that work too...

You got warned!

rover18 · Sep 13, 2011

One last question, are the IFS locking hubs stronger than the SA locking hubs??

WHITE TRASH1 · Sep 13, 2011

rover18 said:
One last question, are the IFS locking hubs stronger than the SA locking hubs??

Not that big of a difference that I'm aware of. I think the solid axle hubs edge out the its ones due to tooth contact between the inner gear and lock ring but I could be wrong.

monstaru · Mar 24, 2013

WHITE TRASH said:
1. Yes the only difference between solid axle and its hubs is the placement of the wheel flanges. Use straight axle wheel seals and you'll be fine.

2. No

I am just now getting to this.
I realized I had some IFS hubs, with new rotors attached.
BUt I have my Bobby gears for the SA lockouts already.
AM I reading this right that I can use my lockouts on the IFS hubbody and it will line up at the axle properly?
Thanksin advance
cheers