Commissioning a Turn Key ERA 427 Cobra

[decooney]

Sam,

Hey, perhaps the common link we share with similar experiences and outcomes starts with what's in front of the transmission twisting stock Jag differentials apart in the first place. Possible Answer: knowledgeable FE engine builders that know how to make torque. Tom built mine, Keith built yours. The result was the weakest link gave out. Hopefully your 3rd round upgrades hold this time. If not, it might lead me to investigating a whole new rear subframe and IRS/differential design. I would possibly do it if there enough of us interested in it and making it worth doing at some point down the road.

[SSSammy]

Originally Posted by decooney

Sam,

Hey, perhaps the common link we share with similar experiences and outcomes starts with what's in front of the transmission twisting stock Jag differentials apart in the first place. Possible Answer: knowledgeable FE engine builders that know how to make torque. Tom built mine, Keith built yours. The result was the weakest link gave out. Hopefully your 3rd round upgrades hold this time. If not, it might lead me to investigating a whole new rear subframe and IRS/differential design. I would possibly do it if there enough of us interested in it and making it worth doing at some point down the road.

You're right about the process of finding the weakest link, Duane. So when Mike Bontoft got done with my differential, I asked him how much torque he thought it would stand. His answer: "I'm not going to tell you .. just don't do what you did .. " He's right, of course, no more drags for this IRS, just road races. It's been fine in that role. For those who value static burnouts and clutch drop launches, Ford made the 9" live axle.

Btw, this $3K piece of CWI artwork is going in the new ERA rear that Doug is building. I get to use the half shafts and the 6-pin hubs too

Flygirl, apologies for all this noise in your thread

Sam