Originally Posted by
DmaxMaverick
1983 models had 2 filters in OEM trim. Tank --> Primary --> Lift pump --> Secondary --> IP.
If you have only one in the system, it's probably OK, especially if it's a later, more efficient type, and installed between the lift pump and injection pump. It has a simple job, and only has to do it. You can also upgrade any OEM filters to modern aftermarket (such as Racor) that uses more common (and much less expensive) filter elements, as well as some being more helpful with priming (some have pumps, which goes a long way to help the starting system). I regularly recommend this, as the OEM filters and parts are becoming more and more rare and costly. Even a Duramax filter would be a good option, compared to the original. Filter elements aren't cheap, but they are very effective and you can find them anywhere. It also has a priming pump, as well as a heater. You may be able to find the assembly in a wreck for cheap.