The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

Tri5Nerd · 09-18-2009, 10:46 PM

Here's the best I could to do today while visiting 3 junkyards.
A 9" from a 1986 Bronco 4x4, with the tag discription.
First line: WFE BK2 4D03
Second line: 3L 50 9 S319D

So I'm assuming that this is 3.50 gear Traction loc or POSI with big axle bearings and 31 spline.
I can't tell what the date code is, someone please help with this?
I'll use the disk setup that I have from the other 9" rear end.

The hardest part is lifting this beast.

Tri5

09-18-2009, 10:46 PM	#9
Tri5Nerd Tripple Five Fanatic Join Date: Sep 2006 Location: USA Posts: 658	Back from my trip to the boneyard Here's the best I could to do today while visiting 3 junkyards. A 9" from a 1986 Bronco 4x4, with the tag discription. First line: WFE BK2 4D03 Second line: 3L 50 9 S319D So I'm assuming that this is 3.50 gear Traction loc or POSI with big axle bearings and 31 spline. I can't tell what the date code is, someone please help with this? I'll use the disk setup that I have from the other 9" rear end. The hardest part is lifting this beast. Tri5 Last edited by Tri5Nerd; 09-19-2009 at 10:06 AM.