Join Date: Mar 2008
Location: norther virginia
Re: 4r100 - sonnax / tricumulator removal question (back to stock)
If you want to tone the shifting down because of the tuning,use a sonnex 372 valve.A famous trans builder everyone loves said to scrap the 427 valve.I used the 372 with transgo springs from a tugger kit and sonnex shift valves on the 1-2,2-3 shift.I used a trannsgo steel valve on the 3-4.My trans shifts awesome finnally! FAST and without any harshness under any conditions.
2001 f250 xlt reg cab 4x4,7.3 stock injectors,water/meth,ITP rr,walbro,5/8 pu,BD/MANN ccv,DP F5,OILGUARD,stock turbo,WW,ATS,1.0 exh.housing,high flow outlet,MBRP4",Billet 3-disk,built trans,Billsteins,11 ISSPRO PERFORMAX gauges,Scan gauge,08 rear cover,350 blocks,x-springs,AFE stg2/pg7,P265/75r16 NITTO Terragrapplers.