OEM Suspension Coils Lifespan

Is there any way of knowing when your OEM coils are shot?

Upgrading to 5100s soon and doubt I'll be doing any serious wheeling. I understand that even a moderate lift when going this route will result in preload and effect ride quality.

My main concern is whether or not my original OEM coils are up to the task. I get that replacing them while they're out is more cost-effective in the long run, but that only really applies if my coils are near the end of their service life.

Thoughts?

 

Mileage?

 

190k

 

I’d say it may be the right time to replace them.
A good budget option could find some low mileage 3rd gen coils to slap on with the 5100s on lowest setting. Just the coils itself raises the front 1in that way you have no preload.

 

Replace them. Do it once, do it right.

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A good option indeed

 

There are guys with 400,000 miles on the original coils. I'd replace them when they throw a code. They're about $50 each so may as well make them last.

 

I thought the same before I saw “5100”

 

Wow! Didn't know that was an option. I'd like to have more than an inch though, but thanks for the input and insight.

 

I've got over 300,000 miles on my coils and I have yet to throw a code...

Edit: both of them.

 

He should clarify the title “suspension coils”

 

Ohhh. I see the miscommunication. Will edit. Thanks!

 

Depending on how high you want to go you could also put a 1/4in spacer on that will net you roughy 1.5in over all.

If your wanting more I’d suggest looking at old man emu coils but above 2in you’ll want to get ucas fir proper alignments. But every truck is different.

 

Lol I’m an idiot, carry on...

 

Spring wear when they incur dynamic motion, so if you drive on really bumpy roads, haul a lot of weight, or do a lot of offroading then they'll wear quicker.

But if your vehicle sat parked for 10 years then the springs would basically be unchanged in that time.

 

I’m getting Bilstein 5100s. Adding a leaf in the back and using my stock coils in the front. I’m at 147k mileage. Hoping to get another 150k life out of them. 2wd and my taco is just my daily driver everywhere. Based on this thread looks like my coils should hold up?

 

Coils sag over time through normal driving. It would depend on "If" you're hitting your bump stops. (Has you coils sagged so much that your suspension is ridding the bump stops?)
This is normally the determining factor in coil replacement (Lifespan)

If you're wanting a lift or different ride quality? Then yes look into replacing them.

3rd gen coils will fit but will more than likely give your truck a lift.
And you need to consider that your rear springs are probably in the same condition as your front.

Why are you switching to 5100? Is you strut dead?

 

Yes my front struts are needing to be replaced. I just got the recall done for leaf springs and they noticed the front struts were leaking oil as well as sway bar link ends were busted. So I just figured might as well slap some 5100s in there, get a slight lift in front/back also.
I read to run stock coils on the 5100s.
Also, my tires rub right some now so without going too crazy on prices and needing to replace the control arms with a bigger lift(which they say replace arms at 3in or higher) should maybe be about 2 inches and hopefully tires won’t rub lol.

 

well if your coils have 190k miles of bouncing up and down, im pretty sure they are tried and need to be refreshed. i would upgrade to the 3ed gen coils, but they are more stiff. or you can get old man emu springs that will get you a slight lift.

but like what the other members said, your rear leaf springs wear out much quicker and i would be more concerned about them. you could get some 3rd gen take offs and install them. they are the same as 2nd get. dont matter if its the sr5, sport, or off road. they are all the same.