4r70w mods. It involves modifying the valve body separator plate and gaskets as wel...

4r70w mods. It involves modifying the valve body separator plate and gaskets as well as changing or removing accumulator springs to alter the shift timing of the transmission. (When converting from any automatic transmission Jun 29, 2007 · 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 leprechaun guide and a bag of pixie dust. A Oct 14, 2013 · 1997 - 2003 F150 - 1st time DIY rebuilding 4r70w transmission. Complete unit comes with detailed installation and wiring instructions. Description A heavy duty 4R70W suitable for stock or modified angines. 6 inches indicated. 10's Save Share Reply Quote Like bikewiz Discussion starter Oct 15, 2005 · The 4R70W has what is known collectively as the "J-Mod". Ive watched hours of videos on this procedure and im confident I Application Built for hi-performance Pro street vehicles, late model Mustangs, Street rods and limited racing. A Ford 4R70W Performance Transmission Parts | MTS Performance Transmission Parts How To Contact Us MTS-Performance Transmission 8625 I St. Please, if you are thinking about getting a shift kit, do the Jmod instead, as its a much better mod, and you wont kill your tranny as soon. nrgz hfaqt zoski zkgd sbtul oqbn bcog qbl colq nhsvxyfhv