New rear train for MKII [Archive]

Pascal

11-01-2022, 03:03 PM

Hello ,

I am a newbie in the ff5 world , I would like to buy a nice MKII but it have a Mustang rear train with drum...

is Someone could tell me if it's possible to change the rear train for an IRS with brake disks in the future?

Many thanks in advance

egchewy79

11-01-2022, 03:11 PM

you're referring to the rear suspension, correct? you can swap the 4 lug to 5 lug and do a brake swap from drums to disks, but you won't be able to covert it to IRS.

svassh

11-01-2022, 03:14 PM

You can also convert it to a 3 link from the old mustang 4 link and will get much better performance from the rear. It adds a surprising improvement on stability.

Pascal

11-01-2022, 03:15 PM

Yes it's about the rear suspension
Thanks for your answer,it's not possible because the chassis is different?

egchewy79

11-01-2022, 03:19 PM

Yes it's about the rear suspension
Thanks for your answer,it's not possible because the chassis is different?

correct. frame is different for the 3 or 4 link set up and the IRS set up.
I guess anything is possible if you can fabricate/weld your own stuff.

Pascal

11-02-2022, 03:08 PM

Many thanks for your answer ssvash and egchewy79

I will take a look on 3 link and 5 lug .. to you have a good link to explain easier ?

svassh

11-02-2022, 03:21 PM

Many thanks for your answer ssvash and egchewy79

I will take a look on 3 link and 5 lug .. to you have a good link to explain easier ?

Here you go
https://www.factoryfiveparts.com/13181-3-link-retrofit-assembly/

Pascal

11-02-2022, 03:23 PM

Thanks !;)

Jeff Kleiner

11-02-2022, 03:24 PM

Actually the pre-Mk4 chassis can be retrofitted for the old Super Coupe IRS. Factory Five used to offer a kit to do so but it was not a simple bolt in undertaking. They probably haven’t built one for years but they don’t ever dispose of the old jigs and conceivably could produce it. The question is, should you? Unless you’re looking for a project I wouldn’t… They also make a retrofit kit for 3 link on pre-Mk4 cars. It’s not nearly as involved as IRS but still requires a good bit of deconstruction, cutting, drilling and fitting.

Jeff

Pascal

11-05-2022, 12:02 PM

Actually the pre-Mk4 chassis can be retrofitted for the old Super Coupe IRS. Factory Five used to offer a kit to do so but it was not a simple bolt in undertaking. They probably haven’t built one for years but they don’t ever dispose of the old jigs and conceivably could produce it. The question is, should you? Unless you’re looking for a project I wouldn’t… They also make a retrofit kit for 3 link on pre-Mk4 cars. It’s not nearly as involved as IRS but still requires a good bit of deconstruction, cutting, drilling and fitting.

Jeff

Many thanks , I am going to ask to FFR if this kit is allways available :)