couple of questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

tracterman2 · 05-22-2007, 10:50 AM

okay I'm wondering about a couple of things...tire size on a stock 1970 chevy C/10....it is a custom 10. I'm thinking 235/75R15...thats what I want to put on it but I figure the stock tire was smaller...what do you guys think? I know it was probably a metric size or a bias ply size. What do you guys think...I'm going original. Also I need some schemematics on the original AM radios if anyone has it...going to do a little conversion...thanks!!

cdowns · 05-22-2007, 11:30 AM

H78-15 was the most common

rlm316 · 05-22-2007, 11:36 AM

According to the GM resto guide the sizes for a 15" rim were G78-15, H78-15, or 7.00-15

**WorkinLonghorn** · 05-22-2007, 12:02 PM

Here's a link to a site that converts these to metric sizes;
http://www.southfloridabusiness.com/tgi/tip5.html

tracterman2 · 05-22-2007, 12:12 PM

thank you guys...that link was really helpful. It should be added to FAQ section...turns out my truck probably came with 225/75R15...so thats what I'm going to go with. okay how about the schematics of the AM radio...I needing to know how to splice into the wire coming from the transmitter to the amp with lowlevel RCA cables to hook up my iPod. This should be pretty simple just have to find the right wire. I'm wanting to retain my factory AM radio and single speaker...but I want it to be a type of a sleeper..in the way that I will be able to hook my iPod to it...won't be the best sound quality...but at least I'll have tunes..lol. It will be kinda like what frizzle fry did but I'm going to use the amp from the stock radio to keep it all factory...he uses his radio as a means to control levels only. Any help with this would be appreciated, if I can get the schematics or figure out on my own the way to wire in the RCA's into the old unit I'll post it. Thanks

05-22-2007, 10:50 AM	#1
tracterman2 Registered User Join Date: Jan 2007 Location: Nashville, Arkansas Posts: 96	couple of questions okay I'm wondering about a couple of things...tire size on a stock 1970 chevy C/10....it is a custom 10. I'm thinking 235/75R15...thats what I want to put on it but I figure the stock tire was smaller...what do you guys think? I know it was probably a metric size or a bias ply size. What do you guys think...I'm going original. Also I need some schemematics on the original AM radios if anyone has it...going to do a little conversion...thanks!! __________________ I'm Your Huckleberry. You Ain't No Daisy.

05-22-2007, 11:30 AM	#2
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: couple of questions H78-15 was the most common __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

05-22-2007, 11:36 AM	#3
rlm316 Registered User Join Date: Aug 2006 Location: Woodstown, NJ Posts: 669	Re: couple of questions According to the GM resto guide the sizes for a 15" rim were G78-15, H78-15, or 7.00-15

05-22-2007, 12:02 PM	#4
WorkinLonghorn Senior Member Join Date: Dec 2006 Location: Studio City, Calif. Posts: 2,883	Re: couple of questions Here's a link to a site that converts these to metric sizes; http://www.southfloridabusiness.com/tgi/tip5.html __________________ '69 GMC C2500 Custom Camper, 8 1/2' bed, New GM 350, NP 435 Close Ratio 4spd. Trans., 3.73 Dana-60 open.Camper and Trailer wiring, PS, PB, AC, tach , three gas tanks, stereo speakers, 2nd owner, Work-Truck supreme.

05-22-2007, 12:12 PM	#5
tracterman2 Registered User Join Date: Jan 2007 Location: Nashville, Arkansas Posts: 96	Re: couple of questions thank you guys...that link was really helpful. It should be added to FAQ section...turns out my truck probably came with 225/75R15...so thats what I'm going to go with. okay how about the schematics of the AM radio...I needing to know how to splice into the wire coming from the transmitter to the amp with lowlevel RCA cables to hook up my iPod. This should be pretty simple just have to find the right wire. I'm wanting to retain my factory AM radio and single speaker...but I want it to be a type of a sleeper..in the way that I will be able to hook my iPod to it...won't be the best sound quality...but at least I'll have tunes..lol. It will be kinda like what frizzle fry did but I'm going to use the amp from the stock radio to keep it all factory...he uses his radio as a means to control levels only. Any help with this would be appreciated, if I can get the schematics or figure out on my own the way to wire in the RCA's into the old unit I'll post it. Thanks __________________ I'm Your Huckleberry. You Ain't No Daisy.



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