Proper height on 77

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Mar 28, 2006 | 09:55 AM

gkrem

Thread Starter

Intermediate

Joined: May 2004

Posts: 38

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From: Milwaukee WI

Proper height on 77

Currently my car sits at 28" from ground to start of rear fender (level surface), my exhaust is just 3" from the ground around the differential. My differential is about 6-7" from the ground.

Do I need to replace my rear spring to bring my car up? Or am I riding at the proper height?

I am starting to wonder if I installed my exhaust in correctly. I have a 74 exhaust on my car. But there is really only one way for it to go on.

Does anyone have photos of their exhaust around the rear axel?

Mar 28, 2006 | 02:09 PM

NHvette

Le Mans Master

Joined: Jun 2002

Posts: 8,339

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From: I can walk to MA

I don't have any pics to toss up ... but :
"Proper" height is not determined by fender height.
The suspension components (lower control arm, etc)
are measured to determine proper height. It is in the rear
of my 75 AIM (which is not handy at the moment) ...
pages dealing with spring/bolt selection at the factory.
The fenders can sit at a range of heights ... 28 is at the upper end of OK.

3" sounds close for the exhaust. I'll try to check mine 2-nite.

Mar 28, 2006 | 02:24 PM

gkrem

Thread Starter

Intermediate

Joined: May 2004

Posts: 38

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From: Milwaukee WI

Something just does not seem right to me. Unfortunately the pictures I took when I took off the original exhaust did not turn out (I need a digital camera)

My picts would be handy to have now.

Mar 28, 2006 | 06:22 PM

crazywelder

Drifting

Joined: Jan 2006

Posts: 1,944

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From: Yooperville MI

My car has the original 20k mile spring and sits at 27 3/4" from the ground to the highest part of the rear wheel opening. I have 2 1/2" pipes with 3 5/8" ground clearance at the rear.

Mar 28, 2006 | 08:17 PM

PEPTO77

Instructor

Joined: Dec 2005

Posts: 246

Likes: 1

From: Concord NC

Just ran out to the mancave and pulled a tape on my '72. I have 27-3/4" at the rear, 26-3/4" up front.

Mar 28, 2006 | 10:42 PM

C3nMe

Pro

Joined: Apr 2005

Posts: 603

Likes: 2

From: Illinois, USA

Quote:

Originally Posted by gkrem

I know the ground clearance on my exhaust isn't that great either, but I have yet to have it bottom out. There is about 3" clearance between the exhaust pipes and the monospring I have -- so that is just about right. I can't measure mine right now as it is already 20" jacked up in the rear (replacing the differential cover).

I do have an AIM for the '77 and it doesn't not specify height at the fender wells, but rather at the frame in the area you should be jacking it up (or close to it).

Front: 8.68" curb
Rear: 8.57" curb

To check fronts:
Lift front bumper 1.5 inches and remove hands to let vehicle settle (do this 3 times). Do the same thing by pushing down (3 times). True heights are average of high and low.

I'll try to post a pick, if it turns out.

Brian.