I'm trying to order a new starter for my 2002 LM7. I keep getting two listings, one for "internal through bolts inside field case" and one for "external through bolts outside field case". I see no difference in the pictures listed and google seems to be of no help. Are they interchangeable? Is there something I can check on my current starter?
You picked a hell of an item to replace also, NAPAONLINE shows them at the cheapest of $159 plus core prices ranging from $31.25 to $74+
So make sure you take your old one with you. Most places will test it for free if they have a starter tester. If it is just your solenoid that is bad, you can get away with replacing just that, but usually it is better to just replace the whole starter at one shot.
just a little bit more powerful but it also has a larger diameter motor inside the housing as well. As I said, either one will work just fine for you so long as you don't have any super thumper cam shaft and big bore long stroke setup that has 13:1 compression or something insane...
I bought my acdelco camaro starter for my 5.3l from amazon for about $125 shipped. No core fees.
But you have to buy the two long bolts seperate, and the post for the typical purple starter wire isn't there, you have to buy the pigtail and wire then solder or crimp the purple starter wire to the pigtail.
For anyone looking in the future, the internal and external bolt styles are interchangeable.
I ended up going with a cheapy from rock auto: TYC # 106489 ($65 brand new). My old starter had the external case bolts, the new one did not. It swapped in without any issue, though the larger case was a pain to slip past my exhaust.