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Old 04-02-2018, 04:39 PM   #1
PunishedC10
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Location: Midland Texas
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10 bolt rear questions

I have some questions about my ‘85 C10 10 bolt rear end. Is the ‘85 10 bolt 28 spline or 30 spline axles? What size ujoint fits the yoke for the drive shaft? I had my driveshaft rebuilt by Drivetrain of Mesquite. They made the front 1350 for the ujoint going to the slip yoke. But I can’t tell if the rear is the same or not. I know they didn’t change out the rear of the driveshaft so it’s still the original size.
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1964 Coupe Deville(cruiser)
1966 Chevy II Nova 2door Hardtop
1985 C10 LS1/4l80e, Ridetech coilovers,22”Coys
2019 F-250 Platinum-Deleted/Carli Supension 37” MT’s
2000 Trans Am WS6, LS1/T-56, too many mods to list
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Old 04-03-2018, 07:56 AM   #2
Rich84
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Re: 10 bolt rear questions

It's 28 spline..They went to 30 spline in 1988.
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Old 04-03-2018, 11:06 AM   #3
PunishedC10
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Re: 10 bolt rear questions

Quote:
Originally Posted by Rich84 View Post
It's 28 spline..They went to 30 spline in 1988.


Thanks man, all the info I found online was coming up with the same thing.
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1964 Coupe Deville(cruiser)
1966 Chevy II Nova 2door Hardtop
1985 C10 LS1/4l80e, Ridetech coilovers,22”Coys
2019 F-250 Platinum-Deleted/Carli Supension 37” MT’s
2000 Trans Am WS6, LS1/T-56, too many mods to list
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Old 04-05-2018, 11:29 AM   #4
PunishedC10
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Location: Midland Texas
Posts: 174
Re: 10 bolt rear questions

Anyone know the ujoint size for the pinion yoke?
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1964 Coupe Deville(cruiser)
1966 Chevy II Nova 2door Hardtop
1985 C10 LS1/4l80e, Ridetech coilovers,22”Coys
2019 F-250 Platinum-Deleted/Carli Supension 37” MT’s
2000 Trans Am WS6, LS1/T-56, too many mods to list
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