Ok.
Michigan, you're really hung up on charts...
Timberens worked great on a car hauler my brother made out of a old '79 E-350 Econoline box truck--they were not cheap,about 150 bucks back 10+ years ago,but he said they were well worth it..
I'm thinking I might go for those GM ones,I am not up to spending 200 bucks on my truck--my friend has a '97 S-10 he's junking soon,I am going to see if the rear bump stops look like the ones pictured here and if they are still good,I can snag those for free...
I'd be willing to pay 30 bucks for new ones if I had too,but any more than that I might as well buy new springs instead ..(which may not "lift" it any,I know the stock springs with their negative arch never did have much clearance between the bump stops and U-bolt pad )..
With only less than 1" clearance on mine right now,I'd need to jack up the truck quite a bit to install longer bump stops,and it'll be riding on them all the time..as long as they are "progressive" it probably would ride good,and it'll lift the front end up some too..my plow frame hangs pretty low,so that would be a plus..
Rather than mess with new springs, why not simply flip yours over? That should give you a couple inches without costing you anything but some time under the truck.
Seriously?????? An upside down spring pack wouldn't support any weight at all. Think how far an axle will droop from ride height.

When unsprung, my front springs have a negative arch to them. When sprung, they have even more negative arch to them. Flipping them over should not change the spring rate in each leaf. If you reverse the order of the shorter leaves (if your truck has any), the overall (progressive) spring rate should not change. And it would seem that you would have an inch of positive arch instead of an inch of negative arch. I have not personally done this, but I have heard of it being done (for what that's worth).
I suggested this to Bob because he seems to have a fondness for repurposing old stock parts to keep things going (vs. simply buying new toys like most folks do). If anyone would be recycling springs, I would think it would be him.
Please elaborate on why this would not work. I do not understand how the spring rate would change simply by reversing the direction.
I'm not sure if you could flip the main leaf without risking the eye opening, but now your recommendation makes more sense to me. Sorry for the misunderstanding..........I doubt that would help---every stock front spring I have removed had practically no arch at all,they laid flat..
Think about it--if you flip the springs upside down,the shorter leaf wont do anything,the main leaf will be supporting the whole load..well,the short leaf might share some load,but it'll only be transfered to it via the clamp thats riveted to the main leaf..that'll fail on the first pothole!..
Ok, I read it as "flip the spring over", not "pull pack apart and flip each of the lower springs in pack over"I'm not sure if you could flip the main leaf without risking the eye opening, but now your recommendation makes more sense to me. Sorry for the misunderstanding..........
