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Discussion Starter · #1 ·
Does anyone know if the IRS from the 03-04 Cobra Mustang will work with the Factory 5 IRS? I have a Viper six speed in my donor Mustang and I would like to use the IRS in my kit to keep the drive shaft movement to a minimum but I need an IRS that will stand up to the 490 hp that my motor has.
 

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You can use the pumpkin and cv joints with the FFR supplied axles, but none of the frame, or other hardware is usable - except the brake hardware. You will still need the knuckles (outer spindles) from a t-bird, as the Cobra ones are the wrong design.

Brian
 

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Discussion Starter · #4 ·
You guys rule. Great pictures Sergio. What do you think of the availability of these rear ends? eBay has one for $1800 with 27,000 miles on it.
 

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Discussion Starter · #6 ·
I was looking on the order page and noticed that Factory 5 has complete kits- and you can order an IRS from them. Has anyone tried this?
 

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Sergio:
Keep me in mind too,I'm looking for one also.

Where did you send your axles to have them made shorter for our F5 application?

Paul M
 
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