Installed my 1.5" collars yesterday... May settle some still, but measuring in the same spot before and after... gain was ~1.125-1.25. Rear still sits 1" higher
Extra preload is great.
Was a little surprised how stiff the springs still are.. We used the wall compressor, but did attempt using 2 std spring compressors. For those doing it on the truck, think a 3rd will be needed or as others have mentioned compressing with jack and then using the 2 spring compressors.
lil scary, still not enough too (fwiw these are not HF type compressors either)
![F8A63E75-A66D-4DD0-917E-0624E0EDF2FA_zpser5zh0a3.jpg F8A63E75-A66D-4DD0-917E-0624E0EDF2FA_zpser5zh0a3.jpg](https://www.fordraptorforum.com/data/attachments/254/254372-578c61235ad6ad4f29a78cee3d45608b.jpg)
![3CD5FAED-63BC-41E6-880E-1A6B9CF64803_zpsx71jur3o.jpg 3CD5FAED-63BC-41E6-880E-1A6B9CF64803_zpsx71jur3o.jpg](https://www.fordraptorforum.com/data/attachments/254/254373-d435b34110999955563631961901ab42.jpg)
![707F4191-9E56-4EFA-BD5C-78257A4E45AE_zpspy39x8we.jpg 707F4191-9E56-4EFA-BD5C-78257A4E45AE_zpspy39x8we.jpg](https://www.fordraptorforum.com/data/attachments/254/254374-cd8d30a50458f5bdc4e662e4f6464462.jpg)
Extra preload is great.
Was a little surprised how stiff the springs still are.. We used the wall compressor, but did attempt using 2 std spring compressors. For those doing it on the truck, think a 3rd will be needed or as others have mentioned compressing with jack and then using the 2 spring compressors.
lil scary, still not enough too (fwiw these are not HF type compressors either)
![F8A63E75-A66D-4DD0-917E-0624E0EDF2FA_zpser5zh0a3.jpg F8A63E75-A66D-4DD0-917E-0624E0EDF2FA_zpser5zh0a3.jpg](https://www.fordraptorforum.com/data/attachments/254/254372-578c61235ad6ad4f29a78cee3d45608b.jpg)
![3CD5FAED-63BC-41E6-880E-1A6B9CF64803_zpsx71jur3o.jpg 3CD5FAED-63BC-41E6-880E-1A6B9CF64803_zpsx71jur3o.jpg](https://www.fordraptorforum.com/data/attachments/254/254373-d435b34110999955563631961901ab42.jpg)
![707F4191-9E56-4EFA-BD5C-78257A4E45AE_zpspy39x8we.jpg 707F4191-9E56-4EFA-BD5C-78257A4E45AE_zpspy39x8we.jpg](https://www.fordraptorforum.com/data/attachments/254/254374-cd8d30a50458f5bdc4e662e4f6464462.jpg)