Coil Springs for 69 Rambler

Does any one know the OEM spring size and rate for the front coil springs on a 1969 AMC Rambler with a  290 V8? 

thanks so much for the info. I recently ordered the TSM, but this is helpful to get me started.  My car is a 69 AMC Rambler 440 Wagon, 290 V8, no A/C. I do design work for a spring manufacturer and am hoping to order a set based on the existing numbers and then they can tell me what they have that will give me a 1" - 1.5" drop.

I have a replacement set of springs (new in box with receipt) that may or may not be of interest...was well over $200 new (believe $244.xx iirc), sell for $100/shipped...if no interest, no problem, just passing along, good luck with info gathering...

Eating Detroit spring co. In Detroit.

https://www.eatondetroitspring.com

I always use Coil Spring Specialties (www.coilsprings.com) for coil springs. They have the factory specs for nearly all cars and will custom make a set for you. The early 60s cars are a bit softly spring, but the factory HD springs were hard. I have found that a spring 12% stiffer than stock provides a marked improvement in handling without affecting ride too much. The factory HD springs are close to 20% over stock and ride hard. The last ones I bought were only 10% stiffer and 3/4" shorter than stock. Handling is definitely better, and can hardly tell a ride difference at all. Should have went with that extra 2%! That seems to be the sweet spot.

I caution you with dropping more than 1" with the springs. More drop than that adversely affects suspension geometry. Unequal length A arms don't work right with much drop. Make a set of drop plates instead. There are measurements in the suspension section, a sticky on drop plates is there. Usually drops car 1-5/8" (IIRC) and doesn't affect suspension geometry -- use stock height springs.