Post #1 for me so hello all,
Recently rebuilt my E4OD
in 1996 7.3 truck after stripping splines off input shaft on my way to work. I used RacerX Eagle TC
, RacerX E4OD
1996 Ultimate kit (all new seals extra, Alto Red Eagle clutches, and Kolene steels), RacerX Red Eagle band, and Transgo 4R100
Tugger shift kit, also new bearings bushings and thrust washers as needed. New filter from CARQUEST, Castrol Mercon V fluid. Everything is good in all forward gears with the exception of manual 1st and reverse having low line pressure, about 40-45PSI at idle and goes up to 70PSI very quickly with a tap of the throttle. Neither will engage unless you are lightly on the throttle, and its slow to engage and slips/shudders. During the rebuild I found that my low/reverse drum is not correct for a 1996, looks like it was from a 4R100
. I left the low/reverse clutch pack stock as none of the friction plates looked burnt, but I did replace the apply piston seals and checked piston with air and measured stack up. I did not have a perfect seal on the case passage so I couldn't tell if air was leaking from the piston seal, but it did apply quickly and firmly on shop air. I removed valve body and double checked low/reverse valve assembly and all looked good. The problem is much less pronounced (almost non existant for a minute on a cold start) when cold which points me toward the seal. My MLPS is good and in adjustment, Shift cable is properly adjusted, all connections clean and tight. Trans had no noticeable issues before removal.
The only other issue I am experiencing is I cannot get the truck to go into Manual 1st with the shifter, but it clicks in with the arm on the trans, and the reverse problem is the same when shifting manually on the trans. Does anybody have any other suggestions other than the apply piston seals before I remove and tear this thing back down to change them?