downshift valve
 

hey my new trans has the 3/4 valve,but do any of u know if anyone makes a full lockout valve,cause even with a full manual valve body the trans still downshifts out of 4th gear at more then 75% throttle and its really annoying

A full manual valve body will never shift by itself. It will stay in whatever gear you have it in forever until you shift it or break it.

i thought about that after i posted,but was unsure if an overdrive trans would stay in 4th even with full manual valve body.this really sux cause i just put the trans in this weekend.it will hold any gear except 4th,and will start off in any gear except 4th.****ed up thing is i just installed the trans and it has less then 50 miles on it.quess its a trip upto the place that built the trans for me now