my downey HD's gave me about 2.25 inches of lift in the rear. i've been really happy with them.

i am going to do BJ/coil Spacers this summer..

 

When you are ready for the BJ spacers/Coil spacers let me know. I'd be happy to help.

 

Are those Heavy Duty Coils? How do I order, you got a phone number?

 

You can place an order at:www.info@trdparts4u.com

Here are the kits we have listed:
https://www.yotatech.com/forums/show...96&postcount=1

Let me know if I can help..........

 

ps. Yes they are the HD 901 coils.

866-477-3398 is our toll free number. If you do not get an answer please leave a message.

 

for springs, isnt the inch measurement according to stock specs? so if you have 10 inch springs according to stock specs.. but are riding at 8 inches cuz of sag for example.. the new springs will be 12 inches? wich means for a long time you ride will be 2 inches taller than stock specs, and hopefully the new springs will wear slower and give you the height longer..

am i off?

 

I talked to AllPro about there 1.5" coils and he said that both there's and Downey's are just Heavy Duty (15-20% larger spring diameter) stock springs. I decided to just buy a pair of used FJ80 coils. I'm installing them this weekend so I'll let you guys know what happens.

 

That is what it should be. Afterall, how is the spring mfg. supposed to know that one vehicle's springs have sagged 1" and another 2" in order to send the the right springs for each vehicle. Springs have a certain relaxed height and a certain spring rate, in units of so many pounds to compress them a certain distance. The vehicle has a particular weight and the ultimate ride height is a combination of the vehicle's weight and the spring rate. So if you have a vehicle with a 2000 lb. rear axle weight and a stock 400 lb/in. spring (combined, both sides), the springs will settle 5" (400 * 5 = 2000). If you swap in a 500 lb/in. spring, it'll only settle 4" (4 * 500 = 2000) and thus will give 1" of lift over stock, assuming all other factors are the same. So over time the stock spring may have settled, losing some of it's spring rate to where it settled 6" instead of 5" that is was originally. If you put on a brand new set of stock springs, you would get back to the stock ride height. This would not be a lift spring, it is the original equipment, stock ride height. Sure, if you replaced sagging stock springs with brand new ones, you would see 1" of "lift", but it is lifting it back to the stock height.

Granted there are more factors involoved, progressive spring rates, differing relaxed heights, etc. So the actual lift for a given set of springs on a given vehicle, may vary from that seen on a different vehicle with a similar spring.

 

Roger,

That is the most complete explanation I have seen posted. I will keep this for future reference. Thanks Roger.................

 

thanks roger