8.8 Cobra Mounts, Emergercy Brake Connections

[Andy33tt]

First post here thanks to the members documenting so well, have gotten through the initial phase of the "go-cart" part with front suspension, brake lines, master cylinders, etc............. Now I am at the rear 8.8 Cobra rear axle and I have a few questions, have not seen a detailed write up on this except for the manual stating that a few adapters are needed. I have contacted Jay @ FFR, he is getting me the necessary adapters, frame mounts that I need. I only had to give $200 for the complete rear end so I have some "play money" available.

Frame Unloaded, please don't make fun of the carpet "pad", it was free....
http://i244.photobucket.com/albums/gg40/ANDY93Z/1933%20Ford%20Twin%20Turbo%20Album/33%20Factory%20Five%20Hot%20Rod%20Build/Frame%20set%20up%20ready%20to%20start_zpsewcx0rj1. jpg (http://s244.photobucket.com/user/ANDY93Z/media/1933%20Ford%20Twin%20Turbo%20Album/33%20Factory%20Five%20Hot%20Rod%20Build/Frame%20set%20up%20ready%20to%20start_zpsewcx0rj1. jpg.html)
Front Suspension
http://i244.photobucket.com/albums/gg40/ANDY93Z/1933%20Ford%20Twin%20Turbo%20Album/33%20Factory%20Five%20Hot%20Rod%20Build/FullSizeRender_zps0jelkglt.jpg (http://s244.photobucket.com/user/ANDY93Z/media/1933%20Ford%20Twin%20Turbo%20Album/33%20Factory%20Five%20Hot%20Rod%20Build/FullSizeRender_zps0jelkglt.jpg.html)
Master Cylinders, Brake Lines. Waiting on powder coating guy to finish up firewall so I can locate reservoirs
http://i244.photobucket.com/albums/gg40/ANDY93Z/1933%20Ford%20Twin%20Turbo%20Album/33%20Factory%20Five%20Hot%20Rod%20Build/Master%20Cylinders%20installed_zps1vy5vrxr.jpg (http://s244.photobucket.com/user/ANDY93Z/media/1933%20Ford%20Twin%20Turbo%20Album/33%20Factory%20Five%20Hot%20Rod%20Build/Master%20Cylinders%20installed_zps1vy5vrxr.jpg.htm l)
Now to the 8.8 Cobra Rear End and what I believe I may need. "Backing Plates" were pretty bent up so I discarded, do I need to get new ones? Notes on the photos will let you know what my issues are. I am just guessing that I am going to need to purchase a few items from Ford to get the axle correct, please see photos. Is that the emergency brake connections that are broken off?
http://i244.photobucket.com/albums/gg40/ANDY93Z/1933%20Ford%20Twin%20Turbo%20Album/33%20Factory%20Five%20Hot%20Rod%20Build/DS%20Rear_zpsrcvaf6od.jpg (http://s244.photobucket.com/user/ANDY93Z/media/1933%20Ford%20Twin%20Turbo%20Album/33%20Factory%20Five%20Hot%20Rod%20Build/DS%20Rear_zpsrcvaf6od.jpg.html)
http://i244.photobucket.com/albums/gg40/ANDY93Z/1933%20Ford%20Twin%20Turbo%20Album/33%20Factory%20Five%20Hot%20Rod%20Build/Mounts_zpsysj7qt3j.jpg (http://s244.photobucket.com/user/ANDY93Z/media/1933%20Ford%20Twin%20Turbo%20Album/33%20Factory%20Five%20Hot%20Rod%20Build/Mounts_zpsysj7qt3j.jpg.html)

Thanks, Andy

[michael everson]

That is just the wheel speed sensor. You don't need it unless you are going to use ABS. I wouldn't bother replacing the backing plates
Mike

[Andy33tt]

Thanks Mike, appreciate the response. One more thing I am trying to figure out with this rear end is the gear ratio, going to need to know that on down the road.

Tag on the differential has these numbers:

S207B

3L08 88 4E16 = 3.08?

Pretty sure the gear ratio is coded here somewhere, any help from anyone. Been Goggling trying to find out but no luck so far.

[michael everson]

Yes its a 3.08 gear ratio In your tag, the "L" means locking.
the 4E16 is the date code May 16th 1994 if I decoded it correctly.

The S207B is the plant assembly code. In this case, Sterling plant.

Mike

[ThickCobra]

Mike,

I have, what I believe to be a rear end from a 1998 mustang GT. The plate label reads S229C R, then 3 L 27 88 6D10. So, Sterling plant but not certain was the "R" stands for. Does the rest mean 3.27 ratio with locking differential, 8.8 gear and mfgd May 10, 1996?

Jay

[68GT500MAN]

I you want to get an idea of the ratio, just put a mark on an axle and the yoke on the 8.8. Then turn the yoke and count the revolutions of the axle, you will see 3 full turns and a partial. If the partial is closer to 1/8th turn, probably a 3.08; if closer to 1/4 turn, probably a 3.27.
Doug

[michael everson]

Yes. 3-27 ratio locking diff..
mike

[ThickCobra]

Thanks. Any idea what the "R"on the tag represents?

Jay

[Andy33tt]

Couple of more questions, had these bolts and nuts left over. Extra's for the 3-Link installs?
http://i244.photobucket.com/albums/gg40/ANDY93Z/1933%20Ford%20Twin%20Turbo%20Album/Rear%20Axle%20Leftovers_zpsrw2i4ros.jpg (http://s244.photobucket.com/user/ANDY93Z/media/1933%20Ford%20Twin%20Turbo%20Album/Rear%20Axle%20Leftovers_zpsrw2i4ros.jpg.html)
Do these brackets need removed?
http://i244.photobucket.com/albums/gg40/ANDY93Z/1933%20Ford%20Twin%20Turbo%20Album/Rear%20Mount%20that%20needs%20removed_zpsglclpdb1. jpg (http://s244.photobucket.com/user/ANDY93Z/media/1933%20Ford%20Twin%20Turbo%20Album/Rear%20Mount%20that%20needs%20removed_zpsglclpdb1. jpg.html)

So far its been clear sailing with getting to the "go-kart" phase, not seeing the issues the guys had with the low Vin# builds. Thanks for all your help.

Andy

[Andy33tt]

Jay at FFR has verified that the "ears" on the rear axle is for a "quad" shock/spring set up and that they will not interfere with the body. Think I will shave them off just because they will look silly just sitting there.