Just thought I'd throw out a friendly reminder that most places have no problem giving out free advise. Call up some reputable company and talk with them and see what they have to say.
4-link FJ60
- Thread starter EarthX
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Awesome. Glad to see someone else not scared to call the manufacturers when it comes to these types of situations.
Just get the saw and start hacking away till you get what you want, thats how i did my fame and its only out by a 1/16 of an inch corner to corner 
EarthX
Owner of Earth Exploration Technologies
- Thread starter
- #45
OK, things are coming along, slowly. I do however have a question; the 60 has a 5.7 350 under the hood followed be a 4l60e tranny. Since Im putting 80 axles under it which have 4.11 diffs, my RPMs will jump up and I really don't want that. What are my options to get my RPMs back down for better highway cruising? 
Ill try and post some pics tomorrow.
Ill try and post some pics tomorrow.
big meats... also called rubber OD.
How does the 80 series unlocked rear diff compare to the 60 rear diff? I was under the impression that the rear diff was as strong if not stronger than the 60 diffs? And with a little modification can be very strong with an ARB? I know about the poor design of the OEM 80 series lockers, the ones in my FZJ are not very reliable.
what were the #'s??
The 4l60E has a .70 overdrive.
With stock 3.70's and 35's you would be turning 1750ish rpm at 70mph..
I am thinking you have different gears in the pumpkins...
The 4l60E has a .70 overdrive.
With stock 3.70's and 35's you would be turning 1750ish rpm at 70mph..
I am thinking you have different gears in the pumpkins...
What is your axle ratio?
If you are turning those #'s at 65 your axle ratio would have to be 5.13's or higher if you are hitting OD
A. You are not getting into Overdrive.
B. You have a very high numerical axle ratio
C. Your tach is set incorrectly (4 cylinder instead of 8)
If you are turning those #'s at 65 your axle ratio would have to be 5.13's or higher if you are hitting OD
A. You are not getting into Overdrive.
B. You have a very high numerical axle ratio
C. Your tach is set incorrectly (4 cylinder instead of 8)
D. You are running 29" tyres.
The 4L60e has a very low first gear (for an auto), and a really tall OD. You shouldnt be anywhere near those RPM's with stock gearing...
I put a 4 link in my 60 and I don't regret it. It has an air suspension and kony shocks. The car handles very smooth on the road and I can drive on 60mph with with no problems. The entire setup is build by me. I think its better just to do it your self, but only if you know if you're doing 
. I would with no doubt put 4 link under my next rig. Hey Mace, When my 60 is doing 55 mph in the OD the engine is running on 1600 rpm. I'm running on 5.38, should I go lover when I put my dana 60 axles under?? (Sorry about the off topic)
Here are some pics of my link setup Mor4wd
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. I would with no doubt put 4 link under my next rig. Hey Mace, When my 60 is doing 55 mph in the OD the engine is running on 1600 rpm. I'm running on 5.38, should I go lover when I put my dana 60 axles under?? (Sorry about the off topic)Here are some pics of my link setup Mor4wd
PictureTrail - Online Photo Sharing, Personal Homepages, Slideshows, Image Hosting
