First Mopar restoration 1967 GTX

[kenmckeown]

Hell Everyone,

I recently purchased a 1967 GTX with a 440 and 727. I am restoring in remembrance of my father. I am going to keep it as stock as possible but the only thing I want to change is disc brakes all around and maybe coil over suspension…I have two questions.

What’s the best disc brake conversion kit everyone is using?

Is replacing the stock system setup with a coil over system really worth it?

Thanks again for your feedback.

 

[Bennoel 10]

Post some pics of the GTX. Is it a driving car now ?? What does it have for brakes now ??

 

[Runcharger]

Coil spring suspension is a downgrade from torsion bars IMO. Go to Dr. Diff website for disc brake conversions.

 

[Belvedere408]

I'd stick with the torsion bar suspension and get bigger bars, along with better shocks.

 

[dvw]

I've used a couple of hese kits. Reasonably priced. Everything fits, All the parts are included. They also have kits with a power brake booster and master cylinder. 1967 PLYMOUTH GTX Classic Performance 6374SWBK-S Classic Performance 1963-74 Mopar Disc Brake Kits | Summit Racing
1967 PLYMOUTH GTX Classic Performance 6374CBK-S Classic Performance 1963-74 Mopar Disc Brake Kits | Summit Racing
Doug

 

[6PKRTSE]

Cool car and cool that you are restoring inn memory of your Father. The Summit kits are nice kits to use. I have also installed several kits. One of my buddies restored his 67 GTX and even took a paint and body class. He did his own body work and paint job. It came our beautiful.

 

[Green72]

i had really good luck with Leed brakes. i also have a 67 GTX

 

[Dave6T4]

For everyday driving, all the time and $$$ converting to rear disc brakes is a waste, The car already has 11" brakes back there. 75% of braking force is done by front brakes in normal driving.

 

[R/T Boy 67]

Another vote for front discs only, and no coilovers.

 

[kenmckeown]

Post some pics of the GTX. Is it a driving car now ?? What does it have for brakes now ??

It is a driving car now…currently it has drum brakes all around. Here are some pics.

 

[kenmckeown]

Cool car and cool that you are restoring inn memory of your Father. The Summit kits are nice kits to use. I have also installed several kits. One of my buddies restored his 67 GTX and even took a paint and body class. He did his own body work and paint job. It came our beautiful.

View attachment 1809060

View attachment 1809061

That’s some good stuff. I will do all the prep work before going to paint.

 

[hunt2elk]

I like Dr. Diff's stage 2 front disc conversion, and keep the drums in the rear. Skip the coil overs and put some PST 1.03 torsion bars in.

 

[KozmicKuda]

Don't fall for the TV show hype. If you were working on a Ford or GM car you might consider a suspension "upgrade".
But actually Mopar suspensions are superior to the competition in design and performance.
IF you have good zero slop ball joints, tie rod ends, bushings, etc. you'll be fine. Don't forget the lower control arm bushings. Good shocks and front discs all good.

 

[autoxcuda]

Get a https://www.doctordiff.com/front-disc-brake-kit-for-11.75-on-disc-knuckles.html kit with upgraded larger diameter 12" rotors (15" rims mandatory)

 

[fesser]

A lot depends on your budget and timeline. If money is no big deal you have a lot of freedom. If like most of us, you are on a budget, I would start by prioritizing what needs repairing first, then move on to upgrades. Also, you will find that some parts, like interior (seat covers, door panels), have pretty long lead times to get the parts in hand, so you might need to order them before you need them in order to have them on hand when you are ready. I agree with those above who recommend not converting to coil overs, or rear discs. Not needed for a street driven car (and likely not need for most track use). If money is an issue, I would probably go through the drum brake system on the car to make sure it is in great shape and keep driving it. Start putting the money to the cosmetic side. Having said that, my 67 still looks like a mud fence. Looking forward to seeing your progress.

 

[ckessel]

If you're handy and there are salvage yards around with the necessary items, this is what Doc Diffs stuff is based off of.
https://www.google.com/url?sa=t&sou...QQFnoECBYQAQ&usg=AOvVaw3Nolx5IULUtvzcdnOVBFrv

 

[kenmckeown]

Don't fall for the TV show hype. If you were working on a Ford or GM car you might consider a suspension "upgrade".
But actually Mopar suspensions are superior to the competition in design and performance.
IF you have good zero slop ball joints, tie rod ends, bushings, etc. you'll be fine. Don't forget the lower control arm bushings. Good shocks and front discs all good.

Thanks for the advice!