Broski’s FJ40 Buggy (4 Viewers)

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It’s one of the next things I will be working on.
Any suggestions on if I should be just adjusting the tops or just the bottom control arms.
Or both top and bottom equally?
Thanks in advance
This may be different on your setup. The bottom links will also adjust the wheelbase on mine. The tops don’t seem to change the wheelbase. I would set your wheelbase where you want it, making sure that your even on both sides, then see if you have enough threads on top to achieve the desired caster, then adjust everything equally from there if you need more adjustments.
 
It’s one of the next things I will be working on.
Any suggestions on if I should be just adjusting the tops or just the bottom control arms.
Or both top and bottom equally?
Thanks in advance
I do not think it matters much. Look at the amount of threads showing and go from there. You will want to keep a lot of thread in the tube.
 
It’s one of the next things I will be working on.
Any suggestions on if I should be just adjusting the tops or just the bottom control arms.
Or both top and bottom equally?
Thanks in advance
I think its going to depend on whoever built your links measured. One thing that really helped me were two sets of the toe alignment tools from Ruffstuff. I set it on jackstands and put one on each hub. Worked really well to pull tapes front to rear, across, and diagonally to get everything tuned in.
 
It’s one of the next things I will be working on.
Any suggestions on if I should be just adjusting the tops or just the bottom control arms.
Or both top and bottom equally?
Thanks in advance
I’ve been reading up on link suspension for my build. There are some great resources on irate4x4 including a great link suspension calculator. You could put your existing measurements in and see a chart predicting the handling and try to make improvements in the spreadsheet, if you are so inclined.

I also read on there that having the right orifice in your steering setup to meter the flow can make full hydro much more pleasant.

I’m new here and not sure about the rules linking to other sites but would be happy to if needed for the calculator.
 
I’ve been reading up on link suspension for my build. There are some great resources on irate4x4 including a great link suspension calculator. You could put your existing measurements in and see a chart predicting the handling and try to make improvements in the spreadsheet, if you are so inclined.

I also read on there that having the right orifice in your steering setup to meter the flow can make full hydro much more pleasant.

I’m new here and not sure about the rules linking to other sites but would be happy to if needed for the calculator.
Linking to other websites is acceptable.

Then I would have to learn to use the calculator 😂
 
Linking to other websites is acceptable.

Then I would have to learn to use the calculator 😂

Here’s a link to the discussion of the calculator, link to resources takes you to it, you have to sign up as a user to see the download button.
I’ve spent two weeks on and off reading everything I could instead of actually doing anything on my build. Sure hope this works.
 

Here’s a link to the discussion of the calculator, link to resources takes you to it, you have to sign up as a user to see the download button.
I’ve spent two weeks on and off reading everything I could instead of actually doing anything on my build. Sure hope this works.
Those calculators can be very useful, and they can be distracting at the same time.
 
Those calculators can be very useful, and they can be distracting at the same time.
I can say if I just went and built it the way my brain thought it should be packaged, it’d be a disaster. But I’ve never even been around a link suspension, starting from scratch here.
I can definitely see where at some point you throw in the towel and just go build the thing.
 
I know nothing of link suspensions other then in the end the link mounts have to go where the fit.
I for sure wanted to see how good or bad my links have been set up but at the same time I’m not ready to start cutting it up if it’s that bad.
I also have to be realistic this is an older build and things have changed just as the calculators have.
One thing at a time 😎
 
Got the links back in and set the castor to 6*
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There no more sideways movement with the new hiem's, the body would shift over the chassis at least a inch if you pushed on the body sideways with the bad hiem's
I will check and set the toe next 😎
It for sure drives better but still a little twitchy IMO
 
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I didn't like the unmarked shift knobs
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So I through on some bling 😜
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Set the toe today. it was toed out 1/8" I reset it to 5/16" in. I used these home made bars to set it. they work like a charm.
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Test drove it again and it drives better again, still not car like but now I would not be afraid to drive it from a staging area to the trail head 😎 I'm calling it a win !


I'm not a big fan of wheel spacers but the 42s where rubbing on the lower control arm and limiting the turning big time. So I installed some 1 1/2 " wheel spacers I don't think it's that big of a deal for a trail rig and now they clear and I have full turning.
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Another win !
At the same time I found that the wheel bearing are lose so I need to do a bearing service.
and the Hiem's on the tie rod are also lose so I will be replacing those 😂 1 step forward two steps back.
 
Both of the diff covers leak and I have the stuff to fix them and new gear oil so I started to work on that.
When I went to pull the first bolt on the front a big puff of air came out 🤨 so I thought the vent must be clogged.
I have look and I can't find a vent is this normal on a Dana 60? I have little to no experience with Dana axles
It does have drive flanges so it's turning all the time.
Thanks in advance for any Help/input
 
So maybe I can drill one of the unused threaded holes all the way through and use that ?
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And yes it's getting fresh Paint 😂
 
Both of the diff covers leak and I have the stuff to fix them and new gear oil so I started to work on that.
When I went to pull the first bolt on the front a big puff of air came out 🤨 so I thought the vent must be clogged.
I have look and I can't find a vent is this normal on a Dana 60? I have little to no experience with Dana axles
It does have drive flanges so it's turning all the time.
Thanks in advance for any Help/input
Got a picture of my breather tonight. From a ‘78 Ford.
IMG_8270.jpeg
 
Both of the diff covers leak and I have the stuff to fix them and new gear oil so I started to work on that.
When I went to pull the first bolt on the front a big puff of air came out 🤨 so I thought the vent must be clogged.
I have look and I can't find a vent is this normal on a Dana 60? I have little to no experience with Dana axles
It does have drive flanges so it's turning all the time.
Thanks in advance for any Help/input
They are more likely to leak if you don’t have a vent. You’re effectively pressurizing them as they get hot. To make it easy, and avoid getting metal shavings in not nice places, I would drill and tap your diff covers and use 45 or 90 degree brass fittings if you have the room, run to a breather hose and you can put a little check valve on it if you’d like. Or if that won’t work, drill and tap on the differential housing with the cover off and a rag where you can catch the shavings.
 
Thing are moving slow.
Small up date the front diff looks really clean super happy with that. I thinking have no vent helped with that.
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The rear diff not so much. It has a vent but it not extended. The diff oil was nasty brown and I'm sure that water got in there. The oil in the front looked new
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The gears look clean no damage or metal in ether F/R but the brown on the right on the rear locker is a little concerning. Looks to be light surface rust.
I'm thinking fresh gear oil and run it.
Thoughts ?
 
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