6.4L Upgrades and Aftermarket - EngineUpgrading or adding OEM or aftermarket equipment to your 2008-Up Super Duty truck with 6.4L Power Stroke diesel engine. Please confine discussion of topics in this forum to those items that are specific to the 6.4L Power Stroke engine.
My dad has an 08 F-450 with 4.88's in it and he loves the truck. He would like to drop the RPM's when towing light and empty and is thinking about an overdrive unit.
Is anyone using the Gearvenders unit or other overdrive units that can give me some feedback and best place to purchase one from.
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99.5 F-350 BTS Trans / Termys / Swamps 200/30 AA Injectors / Swamps IDM / GT38R BB Turbo / AFE Stage 2 / DP/ Evans Coolant, ART Rotors / Dynatrac Spin Free HD Front Hubs, 4 inch Stainless Exhaust, Auto Meter Cobalt Gauges.
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2008 F350 Super Duty XLT, 6.4, Auto, Crew Cab, Long Bed, 4x4, Silver!
XD Monster Black 20x9, LT275/65SR-20 Goodyear Wrangler AT/S E, 2 1/2" front leveleling kit, Arnott Industries rear air bags w/ Air Lift on board compressor,
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: barneybadase</div><div class="ubbcode-body">read the post in the 6.4 forum about the entire truck warranty being voided. </div></div>
The GV unit probably did not cause any of the issues with that truck. The owner stated he was having problems with the axle (abs ring) prior to the installation of the GV unit. It is safe to assume that the GV unit did not cause the problem but probably increased wear and tear on an already present issue that led to the axles premature failure. Any mods you do to your vehicle could possibly give you warranty issues, so mod at your own risk.
08 F450 Lariat Auto 4x2 4.88's Loaded
06 HitchHiker Champagne 37 CKRD fiver
(Traded) 02 F250 Lariat 4X4 PSD Auto Crew Cab Short Bed 33 X 12.50 X 16.5 on Weld Wheels. Jody 80hp Econo tune.
(Traded) 02 Alfa Sun 33 RLTS fiver
Seeing as how it's the same tranny that was behind the 6L, I'll throw in the fact that there were lots of guys who tried these units behind their 6L's and weren't successful. I wish I could remember the exact reason why, but knowing that I don't think that they'll work behind the 6.4L though it is a good idea. There were quite a few of these units for sale recently, all from guys who found that they wouldn't work behind their 6L's.
20" wheels on a F-450? I called and talked to a rep from GearVendors about their overdrive and applications for my 450. Person I spoke with did not recommend the unit for my application. I think he was concerned about it's durability when I am towing heavy, and the questionable fuel savings when not towing.
2008 F-450 Lariat Dark Stone Metallic over Pueblo Gold 4x4(manual shift transfer case, manual hubs), High capacity tow 4:88s, Off Road, Camper packages, Sirius Sat, Upfitter switches, DVD entertainment, tailgate step, traction control, Audiophile 6-disc, PTC Supplemental heat and heated seats(warm buns), rear sensors, traction control, tailgate step. Built May 8, delivered May 24
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2003 Sunline F281SR(weekend getaways)
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I had the Gear Vendor in my 99 with the 6 speed. Awesome! But it did have a few problems. They are right up the road from me so I got a first hand look into the whole program. The 7.3 was fine but the 6.0 was not the perfect match. You look at the GV and it is pretty light weight. Originally an overdrive for a Brit sports car. It failed once on me, big time and warranty was not friendly. Had to beg with the owner to get "half a screwing" Big time sales pitch but that ended there. Duramax and the Allison could not handle it so they no longer support that combination - tore the tail shaft off one too many allisons. Seems their business is way down for I drive by there a lot and the shop is more motor homes. New trannies - you really don't need it plus it never seemed to be matched for an automatic. Is it worth it?? For a stick I would do it just for the overdrive - auto, no way! When it breaks you are dead unless you are a 4x4