i bought a solid axle with auto locking hubs. i want to convert it to manual locking hubs. here are my questions.

1. when measuring the axle to correctly ID what year and what size of axle i have. Where exactly do i measure from? from what point to what point.

2. what years did the Auto Locking Hubs come on? I tried to to fit a manual locking hub from a '86 IFS and they did not fit. the solid axle was larger than the manual hub.

 

Measure from WMS (wheel mounting surface) to WMS.

The IFS hub has a 27 spline gear. The birfield axle (if it's a Toyota) is 30 spline.

How about posting some pics of the axle and we'll help you ID it.

 

thanks scuba for the input. gonna get some pics up later today for ya guys to look at. when i start my sas swap with 5:29 marlin gears ll start a buildup thread with pics

 

having issues loading up pics due to there size i can only upload one at this time