OK I took out the old alternator and started to try to install the new one. I have the feeling I have to eat this alternator and buy another, but not yet. First pic is of the regulator and pigtail for a 73 Plymouth Duster.
The shaft on the 45 amp is smaller, 5/8. The new one is 11/16, so the short bushing off the 45 amp won't work to let the pulley ride on the new one. So I need a new v belt pulley bushing or pulley if the newer ones aren't two piece and have a similar set up to the serpentine pulley.
Next the pivot bolt is 1/4 inch as is the hole through the motor. The holes for the pivot are two sizes, 3/8 and the one with the bushing in the picture is 1/2. How have folks been coping with that?
The top bolt hole is 3/8. You'll need an 1.5" 3/8 bolt with washer and nut for the adjuster. The single bolt on my 45amp won't work.
Except for these annoying but critical differences the sizes look and measure the same. That's 7 inches between pivot and adjuster bolt.
Can't think of anything else right now.
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