Lifetime Supporting Member
Join Date: Dec 2009
Feedback Score: 0 reviews
Most of the internals are the same, but not all. There are some sensors on the 4R100 that aren't on the E4OD, so it would follow that the tone rings or whatever the sensor feeds off of wouldn't be there in the earlier transmission. PLUS, a lot of components in the E4OD were aluminum that were upgraded to steel in the later 4R100s. I wouldn't want to go backwards on reliability by putting in the weaker components.
2003 F-250 XLT Crew Cab 7.3L, Chrome BigTex Grille Guard, Quad pillar - 3 ISSPRO gauges (trans, pyro, boost) and DP-Tuner F6; Roush fuel pressure / temperature / oil pressure gauges, Ford Severe Duty AIS, 31 row 6.0 transmission cooler, ScanGauge II, Marinco mod, Walker BTM
I wonder if clouds ever look down on us and say, "Hey, look - that one is shaped like an idiot!"