700r4 Unresponsive After Leak Repair

[Texas87r10]

I too have an 87 R10 with the 700R4, fluid drained from speedometer gear housing, replaced the seals and refilled fluid and now reverse is working but I almost have to stand on the gas pedal to get it to move, any ideas on the cause?

[bd]

Did you recheck the fluid level with the engine running and transmission in park?