Question about "long" vs. "short" birfields and Aisin hubs (1 Viewer)

[Will Van]

I know that some late '70s trucks came with "long" birfields that require the "long" hubs. I also know that "long" Aisin hubs are difficult to source.

Can you just swap to "short" birfields and run the more common "short" Aisin hubs? Maybe upgrade to chromoly birfs at the same time? Do you have to grind the inside of the axle?

Thanks in advance!

Lock out 101 (FAQ)

 

[lcwizard]

yes on the short birfields with short Aisins.
If you are putting the later birfields into a 40 housing you have to grind a little, top and bottom,
just beyond the knuckle bearings

 

[Will Van]

yes on the short birfields with short Aisins.
If you are putting the later birfields into a 40 housing you have to grind a little, top and bottom,
just beyond the knuckle bearings

Roger that. Thank you for the help.

Where is the best place for later birfields and Aisin hubs? Kurt at Cruiser Outfitters?

 

[GoPats]

Roger that. Thank you for the help.

Where is the best place for later birfields and Aisin hubs? Kurt at Cruiser Outfitters?

Kurt is where I went and am happy with both axle and hubs

 

[lcwizard]

Kurt is where I went and am happy with both axle and hubs

Good choice. I just got a package from Kurt today also