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TT code springs

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Old Oct 26, 2022 | 08:44 PM
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chzuck
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TT code springs

Looking for information on front springs for a 2005 F150 STX. My front spring code is TT. Is that a standard spring for the STX or a heavy duty spring? Window sticker says it has the 6500# GVWR package. I am looking to get loaded struts for it and want it to still ride at the same height it does now.
 
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Old Oct 28, 2022 | 08:38 AM
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ZSK
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From: Gladwin, MI
How to read spring codes:
https://www.sdtrucksprings.com/ford-...-code-listings

Your spring is 8L3Z-5310-T
https://www.tascaparts.com/oem-parts...bC12Ni1nYXM%3D

It's near the top of the spring rate codes but not the highest rating. Standard should be fine for you, but I would consider swapping just the strut and keeping your OEM springs if it's a real concern.
 
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Old Oct 28, 2022 | 09:42 AM
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chzuck
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Thank you for that great information!
The more I look around on the Internet, I think I should replace the spring with the shock. I have seen several places where the coil spring was broken and my truck has 105k on the odometer. Considering KYB SR4078 Strut-Plus units.
 
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