mike_belben
New member
i had a previous thread about this tranny but its been closed for some reason.
280hp work truck with 47re and stock converter/input shaft. im just about the reinstall the VB, did a transgo TFOD-HD2 with the command control governor mods.
i also did the 2nd gear lockup epoxy, SS boost valve coverplate with .082 hole for now. installed the sonnax lube valve and pressure plug. this VB already had a sonnax oversized 4 land switch valve when jasper reman'd it, and it also had the TCC vent hole (that transgo suggests drilling) epoxied back to stock so i chose to widen the separator plate vent slot ala sonnax rather than make a further mess of the VB passage by drilling. brian at sonnax said the transgo was fine with their parts, except not to do a super servo, its too harsh with the transgo. the guy at transgo always seems pretty gruff and doesnt want to talk. his answer was that nothing can be mix and matched and he didnt want to explain what anything i was modding was gonna do to shift quality. aka, leave me alone. i went middle of the road with all the hole sizes transgo spec'd, didnt do the reverse hole enlarging, and i did use their springs for everything except TV.
in the trans housing itself, transgo wants you to pound a restrictor orifice into the accumulator vent to sump. and also change springs. my accumulator only had the one larger spring, not the skinny inner. im installing a billet sonnax accumulator and front servo cover. question im having now, is which servo and accumulator springs to use. keep them stock or install the transgo's?
i realize that accumulator softens a shift, im just not certain whether a thicker spring will make a shift harder or softer.
anyone care to share their trial and error experience?
280hp work truck with 47re and stock converter/input shaft. im just about the reinstall the VB, did a transgo TFOD-HD2 with the command control governor mods.
i also did the 2nd gear lockup epoxy, SS boost valve coverplate with .082 hole for now. installed the sonnax lube valve and pressure plug. this VB already had a sonnax oversized 4 land switch valve when jasper reman'd it, and it also had the TCC vent hole (that transgo suggests drilling) epoxied back to stock so i chose to widen the separator plate vent slot ala sonnax rather than make a further mess of the VB passage by drilling. brian at sonnax said the transgo was fine with their parts, except not to do a super servo, its too harsh with the transgo. the guy at transgo always seems pretty gruff and doesnt want to talk. his answer was that nothing can be mix and matched and he didnt want to explain what anything i was modding was gonna do to shift quality. aka, leave me alone. i went middle of the road with all the hole sizes transgo spec'd, didnt do the reverse hole enlarging, and i did use their springs for everything except TV.
in the trans housing itself, transgo wants you to pound a restrictor orifice into the accumulator vent to sump. and also change springs. my accumulator only had the one larger spring, not the skinny inner. im installing a billet sonnax accumulator and front servo cover. question im having now, is which servo and accumulator springs to use. keep them stock or install the transgo's?
i realize that accumulator softens a shift, im just not certain whether a thicker spring will make a shift harder or softer.
anyone care to share their trial and error experience?