"BE" axle info

[Casey Marks]

Here are the pictures of the internals of the *BE* that Eric forwarded to me to shrink and post. This is the FIRST time that I have actually seen proof of the difference. THANKS ERIC !!

Internal Shot


Spring Plates


Side Gear


Side and Spider Gears


Compare those to the pictures that I had posted of the current 4-series *174* posi guts.


The thicker spring plate is from the 800# spring kit. The thin plate is from a standard 4-series - - vintage 1968.



These above are springs from that same '68 vintage 4-series. I've got the 800# springs, and will have to take a picture of them so that you can see the difference.

I am also doing some investigating to see if we can determine who the engineer(s) are that have their initials on the print that Eric references. Nothing yet ...... I'm also working on what the Eaton part numbers are for the individual components that Eric's pictures document, to see if they are still "in the system".

Yep - it looks like I was wrong. Now we just have to find out if there is anything else we can do besides beg and plead with the guys that are hording 'em now ........

I'm trying right now to cross-reference the below GM part numbers to Eaton numbers. We'll see ........

<font color="blue">3916234 Complete assembly
3918834 Spring Plate - heat treated
3957939 Spring 75lb. each (natural color)
3880140 Spider Gear (larger size)
3918831 Side (Axle) gear (16 teeth) </font>