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I liked the 3-link in my MK4 built over 10 years ago. I am seriously thinking about starting a coupe build the end of this year. My plan is similar but will go with the late model Mustang IRS together with a 363 and the TKX. I have never built up a short block before but I will this time. I will likely get a 363 short block from Ford Strokers add aluminum heads of my choosing and top it off with stack injection. The money saved going with a short block over a fully built long block will go a long way to paying for the stacks.
MK4 base kit, 2004 Mach 1 donor, 4.6L DOHC, TR-3650 5-speed, narrowed stock axle with 3.55 gears and TruTrac, PS, PB, ABS, 17" Halibrand replica wheels, started 12/2011, registered 9/2014, sold 3/1/2018.
1970 Mustang Fastback Coyote powered Boss 302 tribute. Started 10/14/16.
Gen 3 Coupe Base Kit non-donor build. Ordered 4/5/2024 to be received August 2024.
I am interested in your comment about the two different designs possibly being different on the street. I believe the coupe is a MK4 stretched 5 inches plus other changes to configure it for the coupe body. But as far as the suspension goes, pretty much identical except the wheelbase. I have decided on going with the 2015 Mustang IRS, now the IRS should produce a different driving feel without a doubt. I would bet if you drove a roadster and couple back to back that were otherwise configured the same, under most conditions you would not be able to tell them apart. The roadster will be more nimble with a better turn in going into tighter corners. Outward vision will be very different with the roadster being for like a fighter yet with a full canopy. I do get staying with the 3-link as the IRS is an expensive upgrade. This will be my 2nd and, likely last Factory Five as in not so many years, I will likely age out from building complete cars.
MK4 base kit, 2004 Mach 1 donor, 4.6L DOHC, TR-3650 5-speed, narrowed stock axle with 3.55 gears and TruTrac, PS, PB, ABS, 17" Halibrand replica wheels, started 12/2011, registered 9/2014, sold 3/1/2018.
1970 Mustang Fastback Coyote powered Boss 302 tribute. Started 10/14/16.
Gen 3 Coupe Base Kit non-donor build. Ordered 4/5/2024 to be received August 2024.