KurtP
Well-Known Member
I thought it was previously said that rhe last 3 #’s was the spring rate but that doesnt seem to be the case.
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There have been different left and right springs since at least the late 1960s.Just going by what I've seen, the more complicated, the more chance for mistakes. There production line logistics must be incredible to get so many different part numbers to the right truck on the line, of course with scanners now, as long as the tag is right, they can have lots of checks as it goes down the line. To think of the original Ford Model T, all exactly the same, no options and no color choice, to now were you have one line making, I've lost count of models, started with 4, 2021 added several more models, all coming off the same assembly line with 1,000's of different part combinations. What a change computers have made.
Never thought about it, of course never changed springs, never really had a vehicle where you even thought about changing springs.There have been different left and right springs since at least the late 1960s.
I've posted before about the page after page of spring part numbers AMC had for 1970-73 Javelins alone.
There were at least 3 suspension options on the AMX, 4 for the Javelin depending on engine, AC or not Go Pak or not, etc., with left and right springs.
For Eagle there were also different left and right springs - although REPLACEMENTS offered by other parties always fit "either side", the originals had different part numbers.
Note here, an original 1970 spring with original part number tag how even then, the last 3 digits were the ones picked out and enlarged. So what Jeep is doing today dates back to at least 1970 AMC days.
I replaced all springs on my SX4 as 3 were broken when I got that car (it had been abused and the driver must had weighed 500 pounds based on the front seat and extended seat belt), had trouble with a new Eagle wagon "leaning left" (oh, please don't go there!) and AMC ended up replacing springs, also replaced the rears on my 70 Javelin and restored the appearance of the front springs, powder coated them and applied new labels. I replaced all 4 springs under my 73 - the rear leafs were ruined by rust and sitting, the fronts were broken.Never thought about it, of course never changed springs, never really had a vehicle where you even thought about changing springs.
What's the difference between AC VS AB?Max tow rear springs I put under mine -
444AB for driver/left side
445AB for right/passenger side
A change in part number - one, AB, for example, superseded by the AC part. Could be finish, could be the dampening material on it, who knows.......What's the difference between AC VS AB?
My springs are
68341444AC
68341443AC
Whoa - you can NOT increase payload with springs! PERIOD.I saw a Sport S, standard tow package, with spring numbers: 324AB, 325AB. 438AC, 439AC
438AC & 439AC are lower than my 443AC & 444AC
I forget what higher number is, I think heavier. I'm trying to figure out what will give more payload my max payload springs from a manual transmission no tow package or the Rubicon springs I have.
Thank you for all the info. I know Duallys (dualies?) exist because of payload so it makes sense tires have more to do with payload than springs.Whoa - you can NOT increase payload with springs! PERIOD.
SPRINGS are not what gives you payload.
The max tow version does have the highest payload rating of any of them, but it's not springs that do it.
Jeep doesn't market or label that way.
Springs don't change that one bit.
Read the maximum payload number from the sticker on the door frame
Springs won't raise it.
So who is correct? @ShadowsPapa or @KurtP? Springs have no effect or they do effect payload?Generally speaking
-springs *DO* come into account for GVWR and payload, although simply altering the springs yourself does not change the value of the door sticker.
-you *CAN* alter the GVWR of your vehicle through your manufacturer (assuming they are willing to do it) by making changes to the vehicle...brakes, tires, springs, cooling, etc depending on what the manufacturer requires to re-tag the vehicle. Good luck doing that as john q public, however. Ford does it all the time, I do not know about FCA.
dont get me started on “civil asset forfeiture”. Just. Uhg.@KurtP dont forget about civil asset forfeiture abuse
Thank you for all the info. I know Duallys (dualies?) exist because of payload so it makes sense tires have more to do with payload than springs.
Jeep advertises 1700lbs as the Gladiator's max payload on their website but also you're correct they're not marketing a max payload config or spec. I only call mine max payload because
Of the 2020 brochure (top right box) where the Sport S manual no tow package is listed as 1600lbs. My door sticker says 747kgs (1646lbs).
The only thing I'm not sure you're saying is correct (I'm open to being wrong, that's why I'm here - learning) is that max tow has max payload. I've never seen a max tow with as much legal payload listed on the door sticker as me. I think max tow has engine cooling I don't (bigger fan).
Ultimately what I'm trying to get to the bottom of: am I better using my max payload springs or the Rubicon take off springs I have? There are not a lot of sport s manuals with no tow package out there
So who is correct? @ShadowsPapa or @KurtP? Springs have no effect or they do effect payload?
I'm not talking door sticker number. I know printed ink cannot magically change.
Yes - it's for sure part of it. It's a system, an equation. Not a single part. And you were correct in TIRES - that's a big deal that people overlook.But spring rate relative to load carrying capacity IS a *PART* of gvwr.