It may drive fine but what are you gaining driving around in loc if the idea of hubs is to save wear and tear on the driveline, in loc you are spinning the front shaft, to the diff and spinning the front axle shafts under power all the time.
CK5
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1974 Jimmy
- Thread starter texarback
- Start date
I need help identifying something.
I’m rebuilding the front and rear drive shafts.
When I took the dust seal off there was this inside that got tore up…
This is how it was on the spline…
Any clue what it’s called?
Dennys Drivetrain has been my source for Spicer everything but they don’t have something like this.
Thoughts?
I’m rebuilding the front and rear drive shafts.
When I took the dust seal off there was this inside that got tore up…
This is how it was on the spline…
Any clue what it’s called?
Dennys Drivetrain has been my source for Spicer everything but they don’t have something like this.
Thoughts?
Its the Teflon coating they put on the splines to prevent binding.
Awesome. I thought it might be some type of coating that was applied when assembled. There is so much grease on it that I couldn't really tell.
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Last, it seems I'll need to buy a new spline end and possibly a new slip yolk. 
I called Houston Drive Train and they confirmed. Sounds like I'm looking at a grand to have the drive shaft repurposed.
I called Houston Drive Train and they confirmed. Sounds like I'm looking at a grand to have the drive shaft repurposed.
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Looks like you are putting in the work. Keep it going!
I’m trying to stay on it. The bum knee has kept me out of the garage for a month now. I’m falling behind.
Before the surgery I was stuck on the rear diff. I can’t quite get the pinion and carrier to mesh up correctly. It has been frustrating as both axles can go back on once I figure that out.
Before the surgery I was stuck on the rear diff. I can’t quite get the pinion and carrier to mesh up correctly. It has been frustrating as both axles can go back on once I figure that out.
What's the problem you're having? Backlash wrong? Pinion depth? Etc
I get the backlash perfect but it won’t run a pattern that indicates the mesh. I have tried moving the pinion in more and I can’t get the teeth to mark so I can see how they are hitting. The marking compound spreads on all the teeth but there isn’t that one spot on each tooth where it is rubbed off when the gears touch.
I’ve done everything I can think and have watched all the YouTube videos I can find on the topic.
I didn’t think I was an idiot but I might just be. This has been frustrating.
I’ve done everything I can think and have watched all the YouTube videos I can find on the topic.
I didn’t think I was an idiot but I might just be. This has been frustrating.
If you haven't already found it, the gear set up bible on billavista.com is a pretty good source
And you are putting a good amount of resistance on the ring gear when you're doing your pattern tests?
Initially no, but then realized that was a contributing factor. Maybe I’m still not putting enough.
Honestly, I got so frustrated I walked away from it two months ago and focused on other repairs. I’ll get back on it and see if time off has helped.
Honestly, I got so frustrated I walked away from it two months ago and focused on other repairs. I’ll get back on it and see if time off has helped.
I hear you. I walk away from mine all the time, haha
Buy this and put a breaker in it and then you can put a wrench on one of the ring gear bolts and really get a good imprint for your checking pattern. Buy you a crush sleeve eliminator kit from ratech while your at it.
Here is my pattern on the back diff…
The back lash is .007” which according to the historical docs is within range (.005-.008)
I’ve tried moving the pinion in and out and adjusting the carrier to match and cannot get it to show a good pattern.
I guess I’m going to have to take it to someone. I’m disappointed in my lack of ability here.
I’ve tried moving the pinion in and out and adjusting the carrier to match and cannot get it to show a good pattern.
I guess I’m going to have to take it to someone. I’m disappointed in my lack of ability here.
I can't see much of your pattern in these pictures. You need to put more pressure on the ring gear when you turn it. It's kind of hard to explain but you hold the ring gear with a wrench as still as you can while turning the pinion yoke. That should cause the two to push into each other so you get a good imprint. What is your current pinion shim?
The factory shims were:
Pinion shim was .242
Passenger side shim was .248
Drivers side shim was .230.
I didn't take the backlash before I took it all apart. Mistake number one out of many so far.
When I went back to this original setup my backlash was .020 and what little pattern I could get to make didn't look good at all.
From there I went through so many combinations trying to get a good pattern that I got frustrated and walk away.
So, now I have started over.
This is what I am starting with now:
Pinion shims is .300
Passenger side shim is .248
Drivers side shim is .230.
With this setup I have .010 backlash. I have not run my pattern yet but will try to put more resistance on the carrier as it spins.
I'll report back as I work through it. I'm determined to succeed!
Pinion shim was .242
Passenger side shim was .248
Drivers side shim was .230.
I didn't take the backlash before I took it all apart. Mistake number one out of many so far.
When I went back to this original setup my backlash was .020 and what little pattern I could get to make didn't look good at all.
From there I went through so many combinations trying to get a good pattern that I got frustrated and walk away.
So, now I have started over.
This is what I am starting with now:
Pinion shims is .300
Passenger side shim is .248
Drivers side shim is .230.
With this setup I have .010 backlash. I have not run my pattern yet but will try to put more resistance on the carrier as it spins.
I'll report back as I work through it. I'm determined to succeed!
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Did it say .242 on the factory pinion shim? That just seems thin to me. Most of what I've seen is around .30-.34, of course someone else with more experience may know more. As a side note, I did not waste my time with backlash too much until I liked my imprint in regards to pinion depth. If my memory serves me, while backlash is extremely important, it mainly affects the lateral movement of the pattern mark so I did not focus on it until I was happy with my depth. That will keep you from juggling too many variables. Watch the video below, he explains it well.
