Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

My buddy put a set of porter built 1" forward and 1" narrowed a arms on a pancaked 77 c10 cross with cpp modular drop spindles and brakes.The stock tie rods are at least 2 inches too long to be able to put any adjustment in the front end.Any suggestions on a shorter tie rod he can use.

Thanks jake

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

87 looks and no suggestions lol.

I am thinking its gona come down to some kind of heim joint fix.

Jake

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

They dont come with tie rods?
Seems strage

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

You could cut the tie rod down and have it threaded further up the tie rod.

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

That's what my thought was too, it seems like the easiest solution.

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

If we cut both ends enough to have any adjustment there is not enough threads for the adjuster and jamb nuts he bought the cpp adjusters also.

I had thought about running more threads on the links if they don't flare out any I will have to check them out agin.

I guess he is loosing 1 in frm the shortened PB arm and what 3/4 from the modular spindles.

Jake

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

It looks like we might have 3/4 of an inch on both the inner and outer tie rods to cut threads in them .

Jake

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

When I narrowed my lowers 7/8 I trimmed both sides of the tie rods. 2 inches is going to be more than you can cut without treading it more. It is tapered so you will probably need to go have them turned down at a machine shop.

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

Yep

He is going to try to navigate the moog website and try to fing a shorter outer tie rod first befor he goes through all of that.

Jake

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

He ended up getting some moog tie rods for an international scout that should do the trick.

Jake

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

Keep us up to date on how they work. If they work, I'll definitely be wanting the part # since I'm heading down the same road.

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

this is what i got for when i switched to a rack and pinion. it puts the heim at the bottom of spindle to help with steering angle. Talk to porter built they were real helpful and nice parts.

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

The adj and heim you are holding most likely helps with bump steer if your mounting it under the spindle I have thoes on my mustang 2 set up.You want the angle of the tie rod at the same angle as your lower arm so when ou hit bumps they move at the same plane and does not jerk your wheel in and out at ride height.

He had to use parts that would fit stock tie rods on a 77 c10 not mustang rack.

He did contact porter built they told him to get a adjuster that was 3.7 and the adjuster he was trying to use was 4 so the .25 of an inch would not do any good.

But I think it's figured out I will take a pic at some point.

Here is a pic of mine the steering is not adj in the pic and yes I know I need the inside jamb nuts lol

Jake

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

I will get the part number from him these are NOS Scout part he found on ebay the moog version are a tad different but said he coud not pass these up at 20 each moog at the local parts store was about 120 for the set and summit was about 70 shipped.

Jake

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

We have a 1" shorter adjuster sleeve for the narrowed PB arms. It's 1" compared to a factory. This will at least help and maybe only mean you have to trim .5" from each tie rod.

http://www.azproperformance.com/Alum...71-87-C10.html

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

This is good info to know.
Thanks.

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

I am pretty sure this is what porter built suggested and it was not going to work for him.

He has the cpp adjuster that is 4 in long that would be 3/4 shorter than the stock adj.the adjuster you are talking about is 3.7 so it .20 shorter Than the cpp it just was not enough to cut enough off and have the jamb nuts on and have room to adjust them as we saw it.

If you had regular drop spindles and just the 1 in shortened arms I am sure they would work.

Agin this truck has a 1 1/2 in pancaked cross 1 narrow and1 forward arms and CPP modular spindles I think all that together made our(his) issue.

Jake

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

Update on the scout outer part number?

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

For records keeping, I think they used moog es392r. Thread count/pitch is the same at 11/16-18, though I can't find info on taper with a simple search. Will need to do some additional research...

EDIT: Confirmed. It seems this part number is a viable shorter substitute.

73-87 outer (ES409R):

Length - 6.75"
Threads - 11/16-18(R)
Rod Type - Male
Config - Straight
Small Taper - .593
Large Taper - .676
Taper Length - .664
Stud Thread - 9/16-18

Scout II Outer (ES392R):

Length - 3.9"
Threads - 11/16-18(R)
Rod Type - Male
Config - Straight
Small Taper - .612
Large Taper - .703
Taper Length - .728
Stud Thread - 9/16-18

At first glance, the tapers appear different, but doing a little trigonometry yields the exact same taper of 7.125° (or 1.5" per foot). The stud length of the Scout part is .06" taller, or what I like to call negligible. My only concern would be if using the shorter, aftermarket sleeves is if you would get enough thread engagement between the inner/outer.

Thanks to Jake and his buddy for doing the initial research!

Re: Porter built 1" narrow arms and cpp modular spindles need 2 in more
 

Super helpful info!