Full hydro questions - Page 2 - JeepForum.com
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post #16 of 24 Old 10-14-2020, 03:21 PM
bgredjeep
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im glad you brought up rub on the links. what size tires are you running?
40s



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post #17 of 24 Old 10-14-2020, 05:29 PM
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@Waternut ; how much caster are you running? That could be your issue.
Originally it was 11 degrees when I installed full hydro, backed it off to 8 once I realized how much angle there was, and just put it at 7 when I did the 4 link. I never noticed any difference other than poor clearance of the ram at 11 degrees.


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post #18 of 24 Old 10-14-2020, 07:07 PM Thread Starter
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im glad you brought up rub on the links. what size tires are you running?
40s
What back spacing

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post #19 of 24 Old 10-14-2020, 08:03 PM
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What back spacing
4.5. It still rubbed the link when I was running 1.5" spacers with the same wheels. Lowers need to be triangulated, or narrowed a good bit to make it work if you are going for high steering angle. No way around it.


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post #20 of 24 Old 10-15-2020, 06:50 AM
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4.5. It still rubbed the link when I was running 1.5" spacers with the same wheels. Lowers need to be triangulated, or narrowed a good bit to make it work if you are going for high steering angle. No way around it.
I'm running 38x14.5" tires and I rub with 1" backspacing and a 1.25" spacer. It's tough to get that space.

@danthman Get your link geometry right and that usually means pushing the lower links as far outboard as you can get them. Worry about tires rubbing later. Here is how my ram is mounted. I get 30 degrees of steering angle (60 if you count both directions) and it's actually a good amount of steering authority. Sorry about the 45 degree angle example I gave earlier...that may be unrealistic. If I used the same ram mounted on the rear hole, I'd get 37 degrees but mounting on the fwd most hole would give me 25 degrees. Just need to figure out what you're working with and position/size your ram accordingly.
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post #21 of 24 Old 10-15-2020, 07:12 AM Thread Starter
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I'm running 38x14.5" tires and I rub with 1" backspacing and a 1.25" spacer. It's tough to get that space.

@danthman Get your link geometry right and that usually means pushing the lower links as far outboard as you can get them. Worry about tires rubbing later. Here is how my ram is mounted. I get 30 degrees of steering angle (60 if you count both directions) and it's actually a good amount of steering authority. Sorry about the 45 degree angle example I gave earlier...that may be unrealistic. If I used the same ram mounted on the rear hole, I'd get 37 degrees but mounting on the fwd most hole would give me 25 degrees. Just need to figure out what you're working with and position/size your ram accordingly.
thanks. im still a long ways from the calculator. I don't have the option on where to mount the ram. if I remember correctly there is only one position for those barnes weld ons. they line up with the oem arm where the tie rod went. I guess i'll deal with that obstacle when I get to it and before I weld everything permanently.


on a side note, motobilt has some good looking parts.

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post #22 of 24 Old Yesterday, 10:25 AM Thread Starter
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Originally Posted by Waternut View Post
I'm running 38x14.5" tires and I rub with 1" backspacing and a 1.25" spacer. It's tough to get that space.

@danthman Get your link geometry right and that usually means pushing the lower links as far outboard as you can get them. Worry about tires rubbing later. Here is how my ram is mounted. I get 30 degrees of steering angle (60 if you count both directions) and it's actually a good amount of steering authority. Sorry about the 45 degree angle example I gave earlier...that may be unrealistic. If I used the same ram mounted on the rear hole, I'd get 37 degrees but mounting on the fwd most hole would give me 25 degrees. Just need to figure out what you're working with and position/size your ram accordingly.


question. im getting conflicting info online and since you have done this already, what is the correct spline count for the input shaft? or did you do the weld on universal one? I called psc and the said 30 but ive also read 32 spline.

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post #23 of 24 Old Yesterday, 10:50 AM
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question. im getting conflicting info online and since you have done this already, what is the correct spline count for the input shaft? or did you do the weld on universal one? I called psc and the said 30 but ive also read 32 spline.
Mine is 30 spline but verify both the steering shaft and orbital before buying.


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post #24 of 24 Old Yesterday, 02:08 PM
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question. im getting conflicting info online and since you have done this already, what is the correct spline count for the input shaft? or did you do the weld on universal one? I called psc and the said 30 but ive also read 32 spline.
Mine is also 30 spline. I used this end to mate the new steering shaft I built to the orbital valve.

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