Coiz 1979 CJ7 Frame Off Resto; picture crazy - Page 107 - JeepForum.com
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post #1591 of 1943 Old 07-25-2011, 09:51 PM
benullman
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Quote:
Originally Posted by Coiz View Post
The KM2's seem to get a little better feedback and ratings across the board on the internet. Mainly in that they are quieter on the street and they wear better/longer.
Thats the reason I would go with KM2s. You will probably see more on road than off driving and the KM2s will pay you back with good wear and silent riding.

The MT/R would be better for someone like twinsstickd20 becuase he sees more off road than on so they give him a more aggressive tread but arent to load when on road is needed.

Hell, buy a sey of both! KM2 summer tires, MT/R winter tires

Looking good as always!

Ben


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Great minds think alike, but so do serial killers......Thanks.
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post #1592 of 1943 Old 07-25-2011, 10:16 PM Thread Starter
Coiz
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Quote:
Originally Posted by benullman View Post
Thats the reason I would go with KM2s. You will probably see more on road than off driving and the KM2s will pay you back with good wear and silent riding.

The MT/R would be better for someone like twinsstickd20 becuase he sees more off road than on so they give him a more aggressive tread but arent to load when on road is needed.

Hell, buy a sey of both! KM2 summer tires, MT/R winter tires

Looking good as always!

Ben
Yeah you probably nailed it. If I were driving this off road like I was back in college, I would probably jump at the 35" MT/R's. We used to go wheeling almost daily back then.

Now it is more of a weekend warrior until I get myself moved back to Colorado so the 33" KM2's might suit me better near term. When I do get moved back to Colorado I can always get a set of 35" MT/R's so I can have the best of both worlds.

Mike
My build thread
1979 CJ7, FI 5.0L Ford, NP435, D300, Full floated D44 Detroit, D30 Detroit EZ Locker.
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post #1593 of 1943 Old 07-30-2011, 11:12 AM Thread Starter
Coiz
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So I took the Jeep out for work one day instead of driving the company truck. I drove it to one of my dealers about 25 miles away, held my meeting and showed off the Jeep to the dealer principal and technicians. I noticed a small puddle of gear oil under the skid plate when I stopped that appeared to be coming from the rear output shaft seal.

I left that dealer and drove it about 15 miles to another one to hold another meeting and show the CJ to the Parts & Service Director who is a big Jeep and Cobra fan. He used to mud race a CJ5 back in the day and also had a couple different Cobras. While I was there I put the Jeep on the alignment rack just so I would know where I was at.



I figured everything was going to be pretty close because of how well it drives and tracks on the highway. So I was actually surprised to find out I only have .8* of caster. The alignment machine lists 76-80 CJ caster spec at 2-4*. So it looks like I'll be adding a few degrees of caster to my front axle sometime soon.

While it was on the alignment rack I noticed another fairly large puddle of gear oil under the cross member and it was obvious it was coming out of the rear output shaft this time. I'm thinking, this sucks that seal and yoke are brand new.

So I drove it home and cleaned up all the oil, removed the driveshaft then pulled off the yoke. I put my finger up to the seal to see if I could feel any cuts or rough spots on the seal lip. As soon as I touched the seal, the entire thing moved back about 1/8" in the housing. I'm thinking, that shouldn't happen that seal is pressed fit and obviously shouldn't move. So it wasn't leaking between the seal and the yoke, it was leaking between the seal and the housing.

I went to NAPA and asked for the seal expecting it to be a $3 part, $1.99 at Moris4x4, and nearly choked when she told me it was $23. Once I compared the Napa SKF seal to the leaking Omix seal, I gladly paid the extra amount. It was obvious how the metal portion of the Omix seal was very thin and flimsy metal which allowed it to easily distort in the housing. The metal portion of the SKF seal was much stronger, it had green sealing paint around the outside edge and the rubber sealing surface had a smaller diameter which makes it seal to the yoke tighter. Now I'm wondering about my front seal and how long it's going to last. I got the new seal installed and the driveshaft put back on. I drove it another 30 miles or so and all is dry. I'm confident this one won't leak.

After the trip to the dealerships, I determined I drove 77 miles overall after correcting for my 2 mph speedo discrepancy. I had filled up right before I left and then again at the same pump when I got back. I figured my average speed was right around 60mph judging the time spent on state highways, interstate highway and around the small towns. It took 5.0 gallons to travel 77 miles which comes to 15.4 mpg. Not too bad if you ask me.

Mike
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1979 CJ7, FI 5.0L Ford, NP435, D300, Full floated D44 Detroit, D30 Detroit EZ Locker.
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post #1594 of 1943 Old 07-30-2011, 11:18 AM
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I was really surprised at the price of that seal, too when I purchased it from NAPA during my CV shaft install. However, mine has not leaked as of yet...

Great MPG, Mike for all of that performance! CobraJ looks awesome up on that lift!!

-boom

Boom's CJ-7 Project (Completed in 2011) http://www.jeepforum.com/forum/f8/bo...oject-1085653/
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post #1595 of 1943 Old 07-30-2011, 11:32 AM
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This thread still amazes the heck out of me! I was just reading older posts from 2010 based on a link from a different thread. What attention to detail and you have proven to be able to tackle any issue small or large with great success. Cheers, Mike! Hope you have an ear to ear grin as you rumble down the road!!

-boom

Boom's CJ-7 Project (Completed in 2011) http://www.jeepforum.com/forum/f8/bo...oject-1085653/
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post #1596 of 1943 Old 07-30-2011, 11:37 AM Thread Starter
Coiz
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You mean the little issues like this?



Thanks for the comment Boom, it is a lot of fun to drive and I get a lot of satisfaction from it. All the thumbs up and waves I get when driving it around is pretty dang cool.

Mike
My build thread
1979 CJ7, FI 5.0L Ford, NP435, D300, Full floated D44 Detroit, D30 Detroit EZ Locker.
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post #1597 of 1943 Old 07-30-2011, 11:38 AM
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LOL!!! That was exactly the picture I was referring to! HAHA!

-boom

Boom's CJ-7 Project (Completed in 2011) http://www.jeepforum.com/forum/f8/bo...oject-1085653/
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post #1598 of 1943 Old 07-30-2011, 02:59 PM
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Coiz, I had mine in the alignment shop about 2 months ago. Same problem, mine was about 1.5 degrees. My guy told me it needed to be about 5-6 degrees to drive and wear tires correctly. I bought the 4 degree shims and installed. It drives totally different with the new shims installed. Much better... I am still waiting on the short output shaft from Novak and will go back to get it checked once I install the new AX15....

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post #1599 of 1943 Old 07-30-2011, 03:02 PM Thread Starter
Coiz
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Any particular place you picked those shims up from? I have called all the local places with no luck so I planned on calling Tom Woods on Monday.

Mike
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1979 CJ7, FI 5.0L Ford, NP435, D300, Full floated D44 Detroit, D30 Detroit EZ Locker.
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post #1600 of 1943 Old 07-30-2011, 09:23 PM
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Quote:
Originally Posted by Coiz View Post
You mean the little issues like this?



Thanks for the comment Boom, it is a lot of fun to drive and I get a lot of satisfaction from it. All the thumbs up and waves I get when driving it around is pretty dang cool.
That picture, to me, is daunting, and I have a lot of respect for your Mike. Boom is right. I hope everybody left drool stains on your rig after you showed it to them.

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post #1601 of 1943 Old 08-02-2011, 07:01 PM
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Coiz took me the better part of two days to read all 107 pages. Very impressive build! I'm also partial to your choice in paint job. I own an 07 gt500and like your stripes / cobra theme. I hope to build my jeep once I'm done restoring my old (1966)mustang. Lots of good write-ups and I'm sure I'll be refering back to this thread quite a bit. Thanks for sharing with us.

Last edited by Triumph; 08-03-2011 at 10:34 AM.
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post #1602 of 1943 Old 08-03-2011, 03:22 AM
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Coiz, sorry for being late on responding, been busy here. I bought the shims from 4WD.com. Here is a link below. Good quality (machined not cast).... Fit was good and took about 30 minutes to install...

http://www.4wd.com/search.aspx?kw=spring+shims

****************************
Calvin
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post #1603 of 1943 Old 08-04-2011, 02:20 AM
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Wow! Congrats!

Just read the entire thread. Unbelievable. That's the best CJ7 build I've ever seen. Congrats and I hope you have big smiles driving that thing for many years to come.
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post #1604 of 1943 Old 08-05-2011, 05:13 PM
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love it!!!! awesome build, wanna see the new tires.
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post #1605 of 1943 Old 08-05-2011, 06:39 PM
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Quote:
Originally Posted by Gunsmith_207

...wanna see the new tires.

Mike,

Speaking of the new tires, have you decided what rims and tires you're going with?


.

1981 CJ-7: Fresh 304, NV4500, Twin Stick Dana 300, Dual Tops, 33" Mud Terrains, etc.

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