When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I found an '84 F150 XLT at the JY that I might be interested in purchasing for parts. Already got the instrument cluster and door switches and some other small parts/pieces, but if I get the whole truck I have some questions...
Here are the rear springs on my XL:
And here are the springs on the (possible) donor truck:
What is the difference and/or application between the two? Which ones should I have under my truck?
The ones in your truck are a heavier springs then the JY truck. BUT the JY truck has those aftermarket clamp on Helpers which are heavier than your stock one.
I personally would rather have the heaver leafs w the lighter helper(your stock set up)
The reason I'm interested in the springs at all is this. You'll notice in the very top photo that the aux spring is VERY close to the (frame stops?) bumpers, and even when unloaded they are slapping the stops and making a hell of a racket. The other side is missing the plastic stop altogether. In the second top photo you can see the bottom leaf is cocked a little to the side, and seems to move just a little bit, depending how I bumped into the driveway.
I was told I could get a steadier ride, and fix the slapping problem by removing those plastic stops and replacing them with bolt in rubber stops (like the axle stops) 2" for the front, and 3" for the rear, providing "positive contact" to the aux spring.
But what I get here is that it might be even better to remove the light aux spring, and replace it with the helpers shown above? If I stay with the stock setup altogether like Diesel_Brad suggests, I'll still have to do something about that slapping issue...
The reason I'm interested in the springs at all is this. You'll notice in the very top photo that the aux spring is VERY close to the (frame stops?) bumpers, and even when unloaded they are slapping the stops and making a hell of a racket. The other side is missing the plastic stop altogether. In the second top photo you can see the bottom leaf is cocked a little to the side, and seems to move just a little bit, depending how I bumped into the driveway.
I was told I could get a steadier ride, and fix the slapping problem by removing those plastic stops and replacing them with bolt in rubber stops (like the axle stops) 2" for the front, and 3" for the rear, providing "positive contact" to the aux spring.
But what I get here is that it might be even better to remove the light aux spring, and replace it with the helpers shown above? If I stay with the stock setup altogether like Diesel_Brad suggests, I'll still have to do something about that slapping issue...
your springs must be SHOT for the aux helper to be touching while driving w no load.
your springs must be SHOT for the aux helper to be touching while driving w no load.
Like I said, look at the top pic, you can see how close the helper spring is to the stop. It's like that on both sides, but just the front of the spring. The second pic shows the rear of the spring, which has MUCH more clearance at the stop.
Oh Man, don't tell me my springs are shot....unless they are, but thats why I'm here, right?
Let me ask this then. If I was in the market for NEW springs, what do I look for? I mean, what are the specs on a 85 F150 XL? I looked around for just a few seconds, and it seems "spring length" is what I need to know. Is that correct?
Alls you need to know are the width of your springs.
If your truck is a f-100 or f-150 2wd truck it will have 2 1/2'' springs.
If its a f-100 or f-150 with 4x4 it will have 3'' springs as are all f-250/f-350
JCWhitney also sells the StengelBros springs. They have a 5 springs pack (43-711) that has the same capacity as the above 4 spring pack (43-883). What would be the difference?
JCWhitney also sells the StengelBros springs. They have a 5 springs pack (43-711) that has the same capacity as the above 4 spring pack (43-883). What would be the difference?
OK, I'm ready to order my new spring packs, but I need to know what else I might need to complete the installation correctly.
The springs come with the eye bushings. Do I just then need to order new u-bolts and shackle bushings? What about any kind of needed spacers or other items? I've never installed springs before, so I want everything at hand when I start.
I would also like to use new bolts that go through the bushings all around. Are these just off the shelf hardware, or do they need to be some kind of special bolt.
Here are a couple of pics just in case I've missed something:
Last edited by Anafiel; Nov 30, 2010 at 05:36 PM.
Reason: Started new thread
U bolt are a very good idea. And spring bolts are a good idea too. The place you are getting your springs from should have bolts too. Only get grade 8 thru bolts