Sub frame bushing/ body mounts

[NOT A TA]

Im a little confused so apologize for this.. so if I want to lower an inch or two I can just get lower bushings? Wouldnt that just lower the front?

Keep in mind if you consider using the shorter body mount height that you will lose clearance air cleaner to inside of hood, the inner fenders may need to be trimmed so they don't rub the subframe, the radiator fan may hit the shroud, driveshaft angle changes, trans tunnel clearance changes, and probably other things I'm forgetting. They're all things that can be dealt with but may require modifications. And yes, using all or some (wedging) of the shorter bushings just lowers the front.

 

[CorkyE]

Im a little confused so apologize for this.. so if I want to lower an inch or two I can just get lower bushings? Wouldnt that just lower the front?

The advice above, and what others have said, should tell you that lowering bushing are not the way to go.

 

[hd_cat]

What the best body mounts out there I know those red polyurethane do not last long or just use rubber what brand or just try the ebay thing

I'll chime in, I have had both aluminum and now urethane. The current set-up is Energy Suspension black urethane, I have used them on the '73 and the '79, the aluminum bushings were used on an '81 that I had bought new, The '73 has a tight ride with urethane suspension bushings front and rear. The front suspension was done more than thirty years ago with urethane, the body bushings are about three years old. It's personal preference, but I see no issue with Urethane.

 

[kdsracing]

What the best body mounts out there I know those red polyurethane do not last long or just use rubber what brand or just try the ebay thing

Use Global West Suspension “duralum ” bushings. Really stiffen car and last forever.

 

[StLDave]

https://www.jegs.com/i/JEGS/555/60500/10002/-1?gclid=EAIaIQobChMI8vPYjc2U-wIV6SZMCh1BhQmsEAQYAyABEgJA8PD_BwE

then i used grade 8 flange bolts from Macs Hardware

So I messed up one of my front subframe nuts and need to get a replacement to fit the cage. Anybody got a spare nut? ;-) What is a grade 8 flange bolt? Does this include the square nut? Tried to find Macs Hardware, but too generic a term!

 

[sulli]

I have purchased the UMI Performance set (solid aluminum) for my 79. I haven’t had time to install them yet so no real feed back but all of my research pointed me in that direction.

 

[sparky]

Hi. Back in the 90’s, i bought blue energy suspension polyurethane for my entire front end plus the subframe bushings for my 79.

This was a daily driver car.

The sway bar bushings and end links seemed to wear out rather quickly.

The control arm bushing squeaked and squeaked so much it drove me crazy. Every little up and down movement, they would squeak. Even if i sat on the fender, they would squeak. The only time they were quiet was when it was raining.
I have seen some bushings now with grease fittings, but mine did not have any.

As for the subframe bushings, i defintaly felt a harder ride than before.

I just enjoy cruising my car with the occasional stomping of the gas pedal.

The next time i had my car apart i went back to ALL rubber.

The squeaking is all gone, and my ride is much smoother again.
So i personally hated the poly. I never tried metal, but i am guessing the ride is harder than stock.


Depending on what you are doing with the car, (Track/Drag/Cruiser) base your decision on that.

Hope my 2 cents of experience helps./// Sparky

 

[Oldskool62]

I've got the energy suspension bushes all round and used the white grease. No squeaking in it. Still need to fit them to the body mounts, hence the interest in this thread before I do.

 

[jays2k70rss]

When replacing the bushings. Can you replace one set at a time so not to disrupt the subframe alignment?

 

[Burnttoastburgos]

When replacing the bushings. Can you replace one set at a time so not to disrupt the subframe alignment?

from a construction pov, I do not see a reason why you cant or shouldn't. I would think that with the entire car in drivable condition, you would have a hard time upsetting the alignment as Its basically one entire unit.