31 spline cobra diff housing
 

Hey all. I need some info regarding a cobra diff i just bought. I purchased it BRAND NEW from blue oval industries and when looking at it I found that the number on the housing was different than the one on the box. It came in a ford racing box with the Cobra diff part number:

M4204 F318C

The part number on the housing reads:

1L2W-4205-BA

I just wanted to make sure that I didnt get the wrong diff. It is 31 spline, but I expected to find the same part number on the housing. Any help would be appreciated.

Re: 31 spline cobra diff housing
 

can anyone please help??? :machgod:

Re: 31 spline cobra diff housing
 

2nd one looks like a manufacturing number, not a part number.

Re: 31 spline cobra diff housing
 

thanks for the help. I appreciate it. If anyone else can chime in, I sure would be grateful. Thank you.

Re: 31 spline cobra diff housing
 

Just looked at my new one. 1L2W-4205-BA 8C11WF8
Your Golden!

Re: 31 spline cobra diff housing
 

thanks a ton. I appreciate it

Re: 31 spline cobra diff housing
 

how much did you get it for if you dont mind me asking?

Re: 31 spline cobra diff housing
 

i think 259 incuding shipping

Re: 31 spline cobra diff housing
 

Shoulda talked to Itll run! 203.28 here for same one.

Re: 31 spline cobra diff housing
 

how sturdy are these things in a solid axle set up on slicks? I recently picked up some 4.10s and already have slicks, looking for a differential though.

Re: 31 spline cobra diff housing
 

I bought the 31 cobra diff from itlrun. I havn't really got on it yet, but I'm sure it will hold up great from what I've read. I heard of people breaking the more expensive diffs and I heard of people who use used f150 diffs just fine. I would go for the cobra diff from itllrun for $203 w/ the carbon fiber clutch pack.