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Old 06-28-2012, 05:47 PM   #1
ooimpalaoo
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1969.C10 c-notch and 2inch blocks..15s ok?

69 C10 ok im going to install my c-notch this friday and thinking about 2inch blocks too...will i have scrub line problems with 15" steel wheels? thanx for the help
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Old 06-28-2012, 05:49 PM   #2
droppedgmc
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Re: 1969.C10 c-notch and 2inch blocks..15s ok?

you should be just fine. did a '69 with a 7" rear drop, 15" wheels with no issues.

how low are you already?
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Old 06-29-2012, 01:37 AM   #3
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Re: 1969.C10 c-notch and 2inch blocks..15s ok?

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Originally Posted by ooimpalaoo View Post
69 C10 ok im going to install my c-notch this friday and thinking about 2inch blocks too...will i have scrub line problems with 15" steel wheels? thanx for the help
That combo of parts will yield scrub line issues. 2" blocks are better suited for 17+ inch wheels. Will they physically work? Yes. Have many guys done it that way? Yes. Was it safe? No.

1.5" blocks max w/15" wheels. Even then, you need to ensure the u-bolt tips are trimmed so they are basically flush w/the retaining nuts. If the tire goes flat, there is still enough rubber there to keep the u-bolt nuts from digging into the road surface unless the tire comes completely off the rim.
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Old 06-30-2012, 06:53 PM   #4
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Re: 1969.C10 c-notch and 2inch blocks..15s ok?

Im running a 2" block and 15 rally
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Old 06-30-2012, 11:22 PM   #5
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Re: 1969.C10 c-notch and 2inch blocks..15s ok?

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Im running a 2" block and 15 rally
No one said it can't be done. Its just not safe in the event of a blow out.
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Old 07-01-2012, 01:03 AM   #6
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Re: 1969.C10 c-notch and 2inch blocks..15s ok?

and in the front i have 2.5 drop spindles and bags ...to get the ride hight i want i have to run low psi and that makes for a bad ride...what are my options to stay low and have the right psi too....from looking around this site i can cut down my bag lower cups so thay are only 1inch??? this true??? and also if i cup the lower A arms then i can have more psi in the bag im guessing and still be low??? thanx for the help
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Old 07-01-2012, 09:52 AM   #7
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Re: 1969.C10 c-notch and 2inch blocks..15s ok?

Yes, but 1 5/8 is generally the shortest people go on the cups before rubbing issues arise. Cupping/plating is also an option
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Old 07-01-2012, 10:36 AM   #8
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Re: 1969.C10 c-notch and 2inch blocks..15s ok?

what is cupping /plating?
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Old 07-01-2012, 11:08 AM   #9
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Re: 1969.C10 c-notch and 2inch blocks..15s ok?

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Originally Posted by ooimpalaoo View Post
what is cupping /plating?
He is referring to cupping the lower A-arms and plating them for strength. This will get you lower ride height and allow you to raise your bag pressure.
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Old 07-01-2012, 11:54 AM   #10
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Re: 1969.C10 c-notch and 2inch blocks..15s ok?

cool cool and the max for that is 2inch cups?
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Old 07-01-2012, 11:55 AM   #11
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Re: 1969.C10 c-notch and 2inch blocks..15s ok?

and if i cup my lower arms do i need to have the bag cups on too or do i just let the bag float in the lower arm?
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Old 07-01-2012, 01:55 PM   #12
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Re: 1969.C10 c-notch and 2inch blocks..15s ok?

Get a piece of 3/16 plate. Trim to fit/weld to the bottom of the arm. Get a piece of 8" pipe. Weld in place of the coil spring pocket. Drill a hole on center to mount the bag. Search the forums for pics- quite a few members have done it...
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