Hello Javier,
nice to see you posting again. Well, how recently has the timing belt been done? If you have done that and recently along with the water pump, I would just keep that stuff. But if it has been a while, I would think about doing that along with the head gaskets.

Javy, if you want, I will mail you my Leslie Valve Keeper Removal tool if you want this to be done easily. Once you finish you can ship it back.

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89 Raider - V6, Automatic, rear LSD, A/C Retrofit, Cruise Control Retrofit.