net or TCCOA. He designed/released the tech info and it then became known as the "Jmod" after its creator. Jmod is nothing more than drilling some bigger holes in the separator plate of the valve body and removing a couple springs. 4R70W Jmod kit; Shipped a Jmod kit to a Crown Vic owner, kit includes a Pre-drilled Superior Tuff plate, Sonnax shift valves, new gaskets and Motorcraft filter. 0 on 0) The BCA The Jmod is a last thought, I began researching what holes would be best for me, and the accumulator springs too for the 1/2 and 3/4 shifts. i pull a 6x12 lightweight trailer 4R70W Jmod kit; Shipped a Jmod kit to a Crown Vic owner, kit includes a Pre-drilled Superior Tuff plate, Sonnax shift valves, new gaskets and Do the J mod, find a replacement plate, drill it and install. 00 (0. BC Automotive, BCA Transmissions, Performance transmission. Modified Factory Replacement Valve Body Kit 2001 and newer vehicles with 4R70W, 4R70E, 4R75W, 4R75E transmissions Plug and play complete valve body similar to what is commonly known as the 4R70W Jmod kit; Shipped a Jmod kit to a Crown Vic owner, kit includes a Pre-drilled Superior Tuff plate, Sonnax shift valves, new gaskets and Motorcraft filter. In order to fix the slow and slushy shifts of the 4R70W, Ford engineer Jerry Wrobleski came up what is now widely known as the ‘J mod’ (J for Jerry). Looking to strengthen tranny a bit. Ford transmissions: AOD, AODE, 4R70W, 4R70E, 4R75W, 4R75E, 4R100, E4OD, Transmissions, Racing Transmissions, C4 Transmissions, C6 Transmissions, In order to fix the slow and slushy shifts of the 4R70W, Ford engineer Jerry Wrobleski came up what is now widely known as the ‘J mod’ (J for Jerry). Please research your own drill bit sizes and fluid capacities on either Crownvic. Please research your own drill bit sizes and fluid capacities on either Crownvic. Ford transmissions: AOD, AODE, 4R70W, 4R70E, 4R75W, 4R75E, 4R100, E4OD, Transmissions, Racing 1997 - 2003 Ford F150 - What is the "J-mod"? - Hey guys, I heard that the jmod is a mod you can do to a 4r70w transmission that acts like a shift kit. BCA 4R70W,4R70E,4R75W,4R75E COMPLETE HEAVY DUTY REBUILD KIT $450. I have had it done to mine (along with a cooler and 1997 - 2006 Expedition & Navigator - 4R70W Modification - Has anyone performed the J- mod on their Expedition transmission? Here is info I discovered on it: The most popular modification J-mod is a shift kit - definately your best bet for shifting written by a former Ford transmission engineer. 0 on 0) Valve body rebuild kit for 2001-2008 FORD 4R70E 4R75E To win Le Mans with an all-American car, Ford was willing to spend whatever was necessary for the best designers, equipment, drivers and crew. There are a few other kits available, depending on which one you are looking The Jmod is better than most shift kits because a shift kit usually just ups the line pressure of the fluid, as where the jmod makes the needed passages larger. com The quickened reverse engagement is definitely noticeable. 0 on 0) Valve body rebuild kit for 2001-2008 FORD 4R70E 4R75E So the Jmod topic has been beaten half to death on Mustang boards and people seem to think it's some kind of mythical creature that can only be captured on full moon nights with a 2004 - 2008 Ford F150 - J-Mod on a 4R75E - Has anyone done this yet? I have searched several places on the net and not found a good write up on this. Because this BCA 4R70W,4R70E,4R75W,4R75E COMPLETE HEAVY DUTY REBUILD KIT $450. Be aware that the accumulator springs have a . Use the mild specs, not the >300hp specs, unless you are actually going to be making power in that range. 1997 - 2003 Ford F150 - Jmod or Shift Kit? - Ok Guys, I have a 2002 4. Sonnax Transmission parts for Ford 4R75W applications The J-Mod IS a shift kit, and I would choose it over any of the others. 0 on 0) Valve body rebuild kit for 2001-2008 FORD 4R70E 4R75E 4R70W 4R75W $120. This video will take you step by step thru the Jmod Process. Shift kit or upgraded valve body looks like the way to go for improved Alternatively, you can buy a Jmod kit from Eric Schindler (search Ford Transmission Repair & JMod on Facebook), or even a complete valve body if really intimidated. com. If you read the tech BCA 4R70W,4R70E,4R75W,4R75E COMPLETE HEAVY DUTY REBUILD KIT $450. I've heard it mainly being done to crown Vic's and Computer Chips & Tuners - XCal2, Factory Tech and TransGo 4R75E - Reading about 4R70W transmissions. For those of you wondering, the Jmod is named after Jerry, one of the Ford founders of the 4r70w. He requested "Race car" In 99+ transmissions the jmod is removing the 1-2 and 2-3 accumulator springs, and drilling out a few holes on the seperator plate. 6 FX4. Please, if you are thinking about getting a shift kit, do the Jmod instead, as its a much better mod, and you wont kill BCA 4R70W,4R70E,4R75W,4R75E COMPLETE HEAVY DUTY REBUILD KIT $450. 0 on 0) Valve body rebuild kit for 2001-2008 FORD 4R70E 4R75E This video will take you step by step thru the Jmod Process. Thank you Andrew and DetroitP71! This kit corrects this by providing line pressure lubrication to the extension housing bushing. And the transgo kit changed the kickdown from 4-2 to 4-3-2 so no more accidentally going into full pursuit mode when you go past half throttle. I have a 4r70w valve body with the jmod done for sale. Always good to have a spare just in case you blow it. Check eBay or Transmission rebuild kits and parts - AOD/AODE/4R70W - TCCoA Tech Articles I am not to credit for this site, its somone elses site.
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