(need assistance)upgrading injector driver on a 1227148

[duanered at pacbell.net]

i am resending this hopefully to get a response i am not sure of myself
> 
> hello gentle people
>     i took apart my gm computer to see if i could identify the injector
> drivers(transistor) i think i found  them?now how do i upgrade the
> drivers for the peak and hold injector applications? do i just de
> soldier old ones and replace with new ones(national's  lm1949) is my
> info correct i do have a part number off the transistors seven of them
> they are all on a heat sink bar? has any body done this?
> 
>  47698                  
> h         a                           i think these
> 274 651                         are the injector
> there are six of these                    drivers
> 
>  24433
> h         c
> 274 606
> one of these
> 
> 50   98
>  m8612
> b c e k
> and one of these
> 
> thanks
> duane