Front Shocks for Mach 1 with 429 SCJ

[ponypastor]

I need to replace the front shocks on my 1971 429 SCJ.
Has anyone replaced theirs recently?
What brand and specific type? How do the shocks perform?
Thank you.

 

[TommyK]

Tim,

in my 73 vert with a 460 I am running KYB GR-2's. Probably as close as you'll get to a stock ride.

 

[71ProjectJunk]

I replaced min with KYB Gas-A-Just, they work fine.

 

[timachone]

KYB seems to work fine and has a good value for the money! Look at Rockauto...

 

[detritusmaximus]

I have heard of people running KYB Gas-A-Just on the front and KYB GR2/Excel on the rear. Supposedly the Gas-A-Just are too harsh in the rear over bumps? Just what I've heard.

 

[carguy47]

Yep, KYB Gas-A-Just

 

[71ProjectJunk]

I have heard of people running KYB Gas-A-Just on the front and KYB GR2/Excel on the rear. Supposedly the Gas-A-Just are too harsh in the rear over bumps? Just what I've heard.

I have the Gas-A-Just with new Moog Mach 1 front springs and new Eaton Detroit rear leaf springs will all new bushings, ball joints, and everything else. I have not noticed that the rear, or the front, is harsh over bumps. I usually drive modern performance cars, which have quite harsh suspensions, and the Mach 1 is much more softly sprung, than the modern muscle cars.

 

[Stanglover]

I've just ordered a set of KYB Excel G shocks for my 71 Mach 1. It may just be something on my car, but if I hit a large bump, I get a loud "Thunk" in the back with the KYB Gas-A-Just shocks currently on the car, which I (hate this word) 'assume' is the shocks. I have Eaton B351 rear leaf springs, which are quite a bit stiffer than stock. My plan is to change the back first and then the front. Shocks only control the rebound and not the load.