My K5 Blazer Story. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**First c10** · 03-13-2016, 11:10 PM

What is the angle difference from the drive shaft to the pinion? Is the pinion angle less than the driveline?

**Zoomad75** · 03-16-2016, 12:40 AM

Quote:

Originally Posted by First c10

What is the angle difference from the drive shaft to the pinion? Is the pinion angle less than the driveline?

It's off for sure. I grabbed some tools from work to measure it the GM way, but my measurements last night on my sloped driveway were 3 degrees at the t-case (down), 18 degrees on the shaft (down) and 11 degrees (down) at the rear axle. It's going to need adjustment at both ends to be able to pull it all together.

All I know is I got lucky. Dodged a bullet. Had that joint let go at highway speed the shaft would have beat up everything under the truck into oblivion.

Larry and I talked tonight and hatched a plan to get it back into shape.
Fear not, it will be fixed. It's just money anyway!

bmchevy1979 · 03-20-2016, 02:07 PM

Well looks like me and you have about the same luck. Lol about 4months after my 4spd swap I grenaded the rear drive shaft on my 74 caving in the 2month old flowmaster 40s and ripping the ebrake cable out from under it.

does make my want to double check my pinion angle on my 14bolt though cause I do have a slight resonance or drone since the sea I'm not sure If it's the locker though first full-time locker I've used I've always been around 1/2tons with the g80

03-13-2016, 11:10 PM	#1
First c10 Registered User Join Date: Dec 2012 Location: Los Banos CA Posts: 2,706	Re: My K5 Blazer Story. What is the angle difference from the drive shaft to the pinion? Is the pinion angle less than the driveline? __________________ 1956 Chevy Bel Air 2 door 1956 Chevy 210 4 Door 1970 K20 LWB project the Hulk build w/Supercharged 4.8L-ly2/4L60E HULK BUILD 1970 C10 Yellow/White Deluxe LWB w/ 5.3L-LC9/6L80E 1968 K10 LWB Dark green my son calls it "THE HULK Jr"HULK JR SOLD GO GO!!!

03-20-2016, 02:07 PM	#3
bmchevy1979 Registered User Join Date: Dec 2010 Location: Visalia, Ca Posts: 707	Re: My K5 Blazer Story. Well looks like me and you have about the same luck. Lol about 4months after my 4spd swap I grenaded the rear drive shaft on my 74 caving in the 2month old flowmaster 40s and ripping the ebrake cable out from under it. does make my want to double check my pinion angle on my 14bolt though cause I do have a slight resonance or drone since the sea I'm not sure If it's the locker though first full-time locker I've used I've always been around 1/2tons with the g80 __________________ <Brandon> 1974 Chevrolet K5 Blazer 350sbc/SM465/NP205, dana44 front, corp 14bolt rear with 4.10s and a powertrax locker, custom rear bumper 400sbc in the works. 1981 GMC C1500 stepside 250i6, 3spd, 12bolt with 3.08s 2.5/4drop on 15x10 with 275/50r15 81 GMC C3500 cab-chassis dually with utility bed 350sbc, Sm465, 14bolt with 4.10s nv4500 getting ready to go in 1979 Chevrolet K5 R.I.P. http://67-72chevytrucks.com/vboard/s...d.php?t=434096 1976 Chevrolet C10 R.I.P. http://67-72chevytrucks.com/vboard/s...d.php?t=434195 Last edited by bmchevy1979; 03-20-2016 at 02:12 PM.



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