Alternator swao questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Mark B · 10-17-2005, 09:57 PM

Hi
I am new to this group. I have a 1970 C10, 6 cylinder, stepside. Fully restored and is a beauty. 100% stock truck. It's my first old truck after 30 years of admiring others. I got it a month ago.

I am really excited to have found you all. Your site looks like a great resource for help.

I am replacing my alternator with a delco remy 10SI type with a built in voltage regulator. Two questions...

The lower mounting hole is a larger diameter than the original alternator. Do I need a larger bolt and therefore different lower bracket to accept the larget bolt, or do I find a bushing to make up the slack?

Also, the pully is closer to the body on the new alternator. Can I swap pulleys? Or do I move the body of the new alternator forward, in which case I need to change the bend of the top arm slightly.

Hope someone can help me.

thanks
Mark

**kwmech** · 10-17-2005, 10:21 PM

Swap the pulley from your old alt. I would use the old bolt.

tattoo · 10-18-2005, 01:16 AM

IMO use large bolt and drill bracket for larger bolt hole, swap pulley

krue · 10-18-2005, 02:10 AM

Welcome to the board from South Mississippi. Check out the FAQ Submissions for some good info on this swap.

**truckdude239** · 10-18-2005, 09:49 AM

drill bracket to take larger bolt and swap the pullys

10-17-2005, 09:57 PM	#1
Mark B Registered User Join Date: Oct 2005 Location: Ontario, Canada Posts: 145	Alternator swao questions Hi I am new to this group. I have a 1970 C10, 6 cylinder, stepside. Fully restored and is a beauty. 100% stock truck. It's my first old truck after 30 years of admiring others. I got it a month ago. I am really excited to have found you all. Your site looks like a great resource for help. I am replacing my alternator with a delco remy 10SI type with a built in voltage regulator. Two questions... The lower mounting hole is a larger diameter than the original alternator. Do I need a larger bolt and therefore different lower bracket to accept the larget bolt, or do I find a bushing to make up the slack? Also, the pully is closer to the body on the new alternator. Can I swap pulleys? Or do I move the body of the new alternator forward, in which case I need to change the bend of the top arm slightly. Hope someone can help me. thanks Mark

10-17-2005, 10:21 PM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,717	Re: Alternator swao questions Swap the pulley from your old alt. I would use the old bolt.

10-18-2005, 01:16 AM	#3
tattoo "Bondo, just say no!" Join Date: Sep 2005 Location: Barrie Ontario Canada Posts: 75	Re: Alternator swao questions IMO use large bolt and drill bracket for larger bolt hole, swap pulley __________________ "WORK NOW, SLEEP WHEN I'M DEAD, SPEND EVERY PENNY I MAKE" 69 C-10 SWB Stepside (ground up resto in progress) 86 Yugo 69 Honda pc50 moped see my work @ http://www.myspace.com/inkorperated free site for pics

10-18-2005, 02:10 AM	#4
krue Designated A-hole! Join Date: Mar 2003 Location: South Mississippi Posts: 36,448	Re: Alternator swao questions Welcome to the board from South Mississippi. Check out the FAQ Submissions for some good info on this swap. __________________ "If it ain't broke, fix it 'til it is!" Being stupid ain't illegal. We're Still Debt Free Except for the House!!! www.daveramsey.com 70 GMC SWB Stepside project "Green Booger" soon to be 6.0l/4l80e 93 S-10 "Poppaw's Truck"

10-18-2005, 09:49 AM	#5
truckdude239 Senior Member Join Date: Sep 2005 Location: Lewisville, Nc Posts: 10,238	Re: Alternator swao questions drill bracket to take larger bolt and swap the pullys

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