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‘88 K5 front axle rebuild

Noek

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Aliso Viejo, Orange County
Had leak at inner and outer axle seals so....

Looking for torque specs on a few items. I have a 700 page service manual that spends 1 page on front axles with no torques specs :/

Looking for spindle, Carrier bolts, diff housing bolts

Think that’s about it for what I’m doing.
 
Had leak at inner and outer axle seals so....

Looking for torque specs on a few items. I have a 700 page service manual that spends 1 page on front axles with no torques specs :/

Looking for spindle, Carrier bolts, diff housing bolts

Think that’s about it for what I’m doing.
By housing do you mean front cover bolts? Or?
 
GM Axles - Gear Setup Torque and Backlash Specs:

Pinion Preload
(New)
Pinion Preload
(Reused)
Ring Gear
Backlash
Ring Gear
Bolt Torque
Carrier Bearing
Cap Bolts




GM 8.5" / 8.6" (2-Cut) 14 to 19 in-lbs. 6 to 8 in-lbs. .003" to .006" 65 ft-lbs. 60 ft-lbs.
GM 8.5" / 8.6" (5-Cut) 14 to 19 in-lbs. 6 to 8 in-lbs. .006" to .010" 65 ft-lbs. 60 ft-lbs.
GM 8.6" IRS (2-Cut) 14 to 19 in-lbs. 6 to 8 in-lbs. .003" to .006" 65 ft-lbs. 60 ft-lbs

cover 17 ftlbs
 
Thanks for all of the great answers. 160-205lbs on the outer nut seems like a lot. Does that make sense? Inner nut to 35 and outer to 160-205?
 
It just locks the retainer in place. I make it tight with a 1/2” ratchet
 
Thanks for all of the great answers. 160-205lbs on the outer nut seems like a lot. Does that make sense? Inner nut to 35 and outer to 160-205?
That’s what my GM manual says and that’s what I put it to, 160 minimum.
 
Kind of ran into another snag, I can’t get the hub to stay tight with the rotor. Pressed the studs in but they aren’t going any further and there is play between the hub and the rotor and I don’t remember there being any when I removed it, it was tight. So I need to pound the studs in more?
 
Put a wheel on, and torque the lugnuts. Should pull it tight. Remove wheel and double check before driving...
 
I ran into this with hammering the studs in but we actually had to use a press. Not just bang em in but crush em in place.
 
Ok, well new axle rebuild is almost done. Everything went pretty smooth for the most part. Here are the hiccups:

The biggest pain was the new U joints for both axles. Pressing them together hard enough to get the C clips in was difficult. Pressed together with a C clamp and only one side would go in far enough to get the clip in. In the end, had to pound them in, this made the joints tight. I guess over time they will loosen up. Also, once complete and ready to slide into the axle housing, the U joint would not fit through the hole in the knuckle. I had to pound it through, so not sure how I am going to get them out if I ever need to. Have to take the knuckle off I guess. These axles were not exactly OEM. I got them from LMC and they are a tad different as far as the U joint goes, a little bulkier.

The diff carrier was a pain maneuvering it into place with the connecting rod so close to the diff. The long side of the axle was a pain trying to get it through the inner seal, was afraid I was going to mess the seal up.

So the last thing I need to really figure out is the hub/rotor assembly. I have about 1/4" play between them and that's from pounding them in. I assume I will have to press them in the rest of the way like Obijuank5 stated. Then install the brake assembly, install the new Warn lockers (got rid of the MM's) and fill the diff up with some fluid, and cross my fingers. I really think that the leak came from switching from conventional to synthetic oil. That is when I first noticed the leak so I think I will stick just with conventional oil from now on.

Lastly, thanks everyone for all of the tips along the way.
 
For the ujoints being tight after install is somewhat normal and all they need to get smooth again is a good whack of the hammer with it just hanging in your hand. That is of course you didn't crush a needle in there.
 
I hope I didn’t crush one of the needle bearings. It’s actually smooth, doesn’t bind at all, just right. Figure it will loosen over time.
 
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