What did you do to your TJ today?

damn. Send some of that to Tennessee. Today is cloudy and 65°. Tomorrow is sunny and 65°. January and we’re using the air conditioner at night to sleep decent 😤

It's fun to play in the snow. We haven't had any really deep stuff here for a while. The first year we moved here, It snowed over and over with temps below freezing for a couple months. Without melting we had over 3 ft of accumulation. Not mountain or Buffalo type snow accumulation, but it was everywhere. I had piles over 6ft in front of the house from moving it off the driveway. Then next year I got a snow blower and we haven't had anything like that since. 😤
 
Who wants to check my math? I'm going to finalize the rear driveshaft angles with adjustable control arms.

My current setup with full weight sitting on the tires in my garage. 12.6 degree upper angle, 9.9 degree lower angle.

View attachment 393036

Normally, I read you would want to divide the angles evenly. But that increases the upper and lower angles on the u-joints like so with a 15.3 degree joint angle.

View attachment 393044

That seems counter intuitive to vibration and longevity of the joint. My thought is I would want the u-joints as close to a zero degree angle as possible at normal driving axle position.

I could set it something like this to set the lower basically in line and take a 7 degree angle in the joint at the top. That seems better than the joint angles in either case above.

View attachment 393048

These are rough estimates taken from angle measurements in my sloping garage and off of uneven Jeep surfaces. But I'm looking at changes in them, not absolutes to perfect level.

With a single u-joint at each end the angles must match or you will have vibrations and premature u-joint failure. If you install a sye you'll run a dc at the transfer case and a single joint at the axle and you would want the pinion in line with the driveline.
 
  • Like
Reactions: InOmaha
It's fun to play in the snow. We haven't had any really deep stuff here for a while. The first year we moved here, It snowed over and over with temps below freezing for a couple months. Without melting we had over 3 ft of accumulation. Not mountain or Buffalo type snow accumulation, but it was everywhere. I had piles over 6ft in front of the house from moving it off the driveway. Then next year I got a snow blower and we haven't had anything like that since. 😤

Man, I have had a lot of fun in Omaha. First driving job was with Werner Ent.
 
  • Wow
Reactions: John Cooper
damn. Send some of that to Tennessee. Today is cloudy and 65°. Tomorrow is sunny and 65°. January and we’re using the air conditioner at night to sleep decent 😤

Been running the heat at nite, and in the day mostly. Next day or so its supposed to get back up to high 70s low 80s, so I guess I'll turn the A/C back on at least during the day. Couldn't sleep if the house was 65 though - we keep it at 75 or even 76 at nite.
 
DIY Dash/Trail cam:
1) I didn’t want to buy anything new
2) minimal wires showing
3) consolidate with phone charger
4) switched power


1) Used an add a fuse kit + female 12v cig lighter tapped into the 20A rear wiper (I have a soft top) and grounded to pass speaker

2) Anker dual port USB C&A with the wires run up to via the defrost vent

3) Eufey home camera with the mount removed, attached via pipe silicone with a 32g SD card.

4) Camera will boot in a few seconds and record locally to SD and is also paired to my phone hotspot which is only needed when downloading files.

Some test shots below.

88102BE4-3EB7-4422-9FD2-CCF9C9A45DF6.jpeg


AF9BEA64-A980-438D-A98F-08AA89262B01.jpeg


9F9574CC-6645-4182-BE9C-187856E28AC3.jpeg


9F5F9048-1E7A-4FEA-81D9-82D538855941.jpeg


C4AF980E-ABAC-439A-9CF7-B66A66BBB552.jpeg
 

Attachments

  • IMG_0827.MOV
    2 MB
Been running the heat at nite, and in the day mostly. Next day or so its supposed to get back up to high 70s low 80s, so I guess I'll turn the A/C back on at least during the day. Couldn't sleep if the house was 65 though - we keep it at 75 or even 76 at nite.

I love me some Arizona winters. Electricity bills in the $80 range.
 
DIY Dash/Trail cam:
1) I didn’t want to buy anything new
2) minimal wires showing
3) consolidate with phone charger
4) switched power


1) Used an add a fuse kit + female 12v cig lighter tapped into the 20A rear wiper (I have a soft top) and grounded to pass speaker

2) Anker dual port USB C&A with the wires run up to via the defrost vent

3) Eufey home camera with the mount removed, attached via pipe silicone with a 32g SD card.

4) Camera will boot in a few seconds and record locally to SD and is also paired to my phone hotspot which is only needed when downloading files.

Some test shots below.

View attachment 393072

View attachment 393073

View attachment 393074

View attachment 393075

View attachment 393076

Crap - that remind me - I bought a dash cam about 4 months ago - need to put that thing in...
 
  • Haha
Reactions: RINC
With a single u-joint at each end the angles must match or you will have vibrations and premature u-joint failure. If you install a sye you'll run a dc at the transfer case and a single joint at the axle and you would want the pinion in line with the driveline.

I knew I read that here somewhere. It just seems a little counter intuitive to me. I would have thought decreasing the angles the joints go through would help, but I guess there's a lot of odd forces at play with different velocity changes at different u-joint angles.

I'll decrease the rear pinion shaft angle so it's close to the transfer case output shaft angle.

Thanks
 
It's fun to play in the snow. We haven't had any really deep stuff here for a while. The first year we moved here, It snowed over and over with temps below freezing for a couple months. Without melting we had over 3 ft of accumulation. Not mountain or Buffalo type snow accumulation, but it was everywhere. I had piles over 6ft in front of the house from moving it off the driveway. Then next year I got a snow blower and we haven't had anything like that since. 😤

 
  • Wow
Reactions: RINC
DIY Dash/Trail cam:
1) I didn’t want to buy anything new
2) minimal wires showing
3) consolidate with phone charger
4) switched power


1) Used an add a fuse kit + female 12v cig lighter tapped into the 20A rear wiper (I have a soft top) and grounded to pass speaker

2) Anker dual port USB C&A with the wires run up to via the defrost vent

3) Eufey home camera with the mount removed, attached via pipe silicone with a 32g SD card.

4) Camera will boot in a few seconds and record locally to SD and is also paired to my phone hotspot which is only needed when downloading files.

Some test shots below.

View attachment 393072

View attachment 393073

View attachment 393074

View attachment 393075

View attachment 393076

Be sure and get some Videos this weekend!!!!!

Just keep @tr21triton away from the camera!!!!!
 
  • Like
  • Haha
Reactions: RINC and tr21triton
I knew I read that here somewhere. It just seems a little counter intuitive to me. I would have thought decreasing the angles the joints go through would help, but I guess there's a lot of odd forces at play with different velocity changes at different u-joint angles.

I'll decrease the rear pinion shaft angle so it's close to the transfer case output shaft angle.

Thanks

This is a great thread to help you understand the process better:

https://wranglertjforum.com/threads/how-to-properly-set-your-pinion-angle.228/
 
  • Like
Reactions: RINC and InOmaha
Been running the heat at nite, and in the day mostly. Next day or so its supposed to get back up to high 70s low 80s, so I guess I'll turn the A/C back on at least during the day. Couldn't sleep if the house was 65 though - we keep it at 75 or even 76 at nite.

When it’s 30° outside we’ve got the window open with a fan blowing in some of that cool fresh air. It gets the room cooled down to almost 50° and the sleep is on!!
 
Attempted to buy new wiper blade inserts today. You can buy the whole wiper and fork over lots of money! I just want the inserts, the frames are new from two years ago.
 
  • Haha
Reactions: John Cooper