A short shaft pump places the fan WAY too low on the older trucks' radiator, which creates problems with fan blade length and airflow through the radiator. The relocation plate solves both problems very effectively. Drilling and tapping two holes is child's play- - - -even if the child's fingers are covered with band-aids! Yes, swap to the smaller balancer- - - -not necessarily for the diameter, as the pulley sheaves are the same size on both, but it makes it a lot easier to find the proper water pump with the wide fan belt. The high mount pump with the narrow belt is very hard to find, and expensive.
Jerry
It's not doing the drilling/tapping that concerns me, it's some of the comments I read elsewhere about blocks cracking, etc. I have no idea whether such claims are true or not. Was hoping someone could shed some light on that.
The other thought I had regarding cooling was it looks like the adaptor plate blocks off much of the large hole on the front of the block. Seems that would cut down on coolant flow versus having the "correct" stock pump installed?
Trying to maintain a stock look, so hoping to not go to electric fan. May even stick with 6V, but haven't decided for sure on that yet.
