Factory Ride Height

[FCC]

Just changed out my front suspension and about to change out the rear leafs.  I want to know how much sag are in my current stock springs. 

Does anyone know what is the factory ride height, front and rear?  My Challenger seems to sit pretty low IMO.  Thanks.

[Bluemonster71RT]

The front height is figured by (A) measuring the lowest point of one adjusting blade to the floor and (B) the lowest point of steering knuckle arm, at center line on the same side to the floor.  The difference between A and B (A always being greater than B) is the front suspension height.
 And the book specification says height is 1. I assume they did that because of different tire sizes. This would keep the geometry correct no matter of  bumper height.

As for the rear. I think your at the mercy of what ever springs/shocks you put in. The book only tells how many leafs, lengths and widths.

[HP2]

Above is c orrect. The factory height measurement as explained in the Field Service Manual is not taken off of any body panel. The front is as explained above and I forget the exact spec but it varys on car lines from 1.125 to 1.875. I think E bodies are 1.38.  There is no FSM spec for rear ride height, although the factory assembly guides did have a number for this, it was never published outside of the factory literature. I think Barry Washington's Hamtramk Registery has a copy of this if you wanted to search his site for it.

Ultimately, I just set mine where it looks good. From the factory in original trim, most of these cars had a reverse rake. The rear is not easily adjusted, so set the height on the front to a complimentary level with your current set up and tell the alignment guys not to change it.

[GUMM B]

Above is c orrect. The factory height measurement as explained in the Field Service Manual is not taken off of any body panel. The front is as explained above and I forget the exact spec but it varys on car lines from 1.125 to 1.875. I think E bodies are 1.38.  There is no FSM spec for rear ride height, although the factory assembly guides did have a number for this, it was never published outside of the factory literature. I think Barry Washington's Hamtramk Registery has a copy of this if you wanted to search his site for it.

Ultimately, I just set mine where it looks good. From the factory in original trim, most of these cars had a reverse rake. The rear is not easily adjusted, so set the height on the front to a complimentary level with your current set up and tell the alignment guys not to change it.

The 1973 Dodge service manual says that the front ride height for E-bodies (distinguished by Carline B or J) is 1 1/8". The maximum allowable height difference between front driver side and front passenger side is 1/8".