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73-87 Chevy _ GMC Trucks => Electrical => Topic started by: Jeff86inMS on February 27, 2019, 08:44:45 PM

Title: Direct drive vs. gear reduction starter
Post by: Jeff86inMS on February 27, 2019, 08:44:45 PM

It’s time to replace the starter on my 1986 C10.  I recently pulled the tired original 305 in lieu of a new crate 350 Vortec.  When I replaced the engine I reused the starter that came off of the 305.  It is starting to fail.  I want to replace it with a starter meant for this engine.  The new engine is a direct replacement crate engine for a 1996 - 2002 GM truck L31, VIN code “R”.  That engine had a gear reduction starter, which has 3 posts on the back, my failing starter only has two, though it has three wires connected to two posts.  Can I use a gear reduction starter with this engine and set up, or is my wiring not sufficient.  Thanks for any advice you can provide.  Auto electric is my downfall!


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Title: Re: Direct drive vs. gear reduction starter
Post by: VileZambonie on February 28, 2019, 07:21:00 PM

The wiring is the same. B+ and S terminal are where you make the connections on the solenoid.

Title: Re: Direct drive vs. gear reduction starter
Post by: Jeff86inMS on February 28, 2019, 08:20:51 PM

Got it, I’m learning!  Thanks!


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Title: Re: Direct drive vs. gear reduction starter
Post by: Captain Swampy on March 02, 2019, 02:34:36 PM

I think you need the bolts for that starter. They're a different length I think.

Title: Re: Direct drive vs. gear reduction starter
Post by: Jeff86inMS on March 02, 2019, 04:13:01 PM

You were absolutely right, had to go get new bolts, but its installed now.  Great little starter, lot better than the old boat anchor that it replaced.  Thanks for the advice!


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