Firestone R4 Tech Kit - Ford Powerstroke Diesel Forum
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post #1 of 2 Old 05-08-2013, 03:23 PM Thread Starter
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Firestone R4 Tech Kit

I was wondering if anyone has installed this on there truck? Will this have any affect on warranty because you will be removing some leaf springs? I've been looking at his and it looks like a good upgrade from stock. Does anyone have any good info on it? Thanks
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post #2 of 2 Old 05-14-2013, 07:04 PM Fanatic
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I've been wondering the same...

Bump it up.

2011' F-350 ccsb lariat, 6.7 every option, 8611lp blizzard plow, H&S, 5" MBRP
2005 F-350 eclb lariat V10 Blizzard 8611lp
2000' F-350 Reg cab xlt 7.3 4x4 Plow truck- 8611lp Blizzard plow, FTVB, DP Tuner, Foil delete
2001 F-550 Reg cab xlt 7.3 4x4 Plow/ dump truck 11' tipper, 8611 Blizzard plow, 1705 tuner
1999 F-250 Reg cab 5.4 blizzard 810
2003 Mercury Marauder
1989 Mustang Coupe- Drag car 10.96@ 126
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