Originally Posted by NITROUSN
Originally Posted by gtx6970
Ive never owned a 1968.

But. Have owned 4 of a 1969 GTXs. All 440 cars . And none have had the 3/8" main line.

All 4 have been 5/16 with the 1/4" return line.
3 of them St Louis built....1 was Lynch road i think


I might be wrong but I do not think I have ever seen a 68-70 tank sender with 5/16 and a 1/4 return. As far as I know they were only 3/8 and 1/4.


thats the odd part. every one had the correct 3/8" sender with the 1/4" return , yet ALL 4 cars had the 5/16" main line with the 1/4" return line beside it