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Topic Review (Newest First)
06-13-2010 12:33 PM
71corvette I need to measure the diameter but it is a chevy bolt patern. I think i will get the whole 11 inch brake kit with new spindles as well.
06-13-2010 12:12 PM
powerrodsmike I could be wrong, but I think those look like the original MII rotors, or maybe Granada 10" rotors with GM calipers. What is the diameter and bolt pattern? Give one of the brake companies a call, there are several different 11" rotors available, some make the track width wider than others.

ECI has some brake kits and they say which ones move the wheels out from the stock location and which ones don't.
http://ecihotrodbrakes.com/mustang_p...nversions.html

Be careful if you start trying to use parts store rotors, pretty much all of the swap rotors that come with the brake kits have mix and match bearings and races to get them to fit the MII spindle...Some are actually less than perfect matches too, but seem to work. (case in point: I once got a set of rotors for a fatman kit, and they sent out a rotor with a bearing race to install that actually lets the rollers hang out the race a little bit)

Later, mikey
06-13-2010 11:35 AM
71corvette sort of what I was thinking, a new crossmember. but for now I just want to drive the car and not tear it down ( I already have two project cars going) so I think I will probably go with a new brake and spindle kit wich will bring it in a bit and find some wheels with enough backspacing.
06-13-2010 11:05 AM
powerrodsmike IIRC the early kits that you could buy had the upper hats and weld on strut rod mounts. Getting the crossmember out of a donor car is a PITA, and the stock upper hats didn't work on frame type cars anyway after you hacked them out.
I don't know of anyone making short a arms for a MII, keep in mind that you would need to replace both lower as well as upper to retain any suspension geometry and keep the camber right..Also, the upper a arms are really close to the spring hat in alot of installations, so getting short uppers may be the issue with getting short lowers..

The guys who have too wide track width issues usually get wheels with more backspacing to fix it. That creates some other small problems, but they are usually not as hard to deal with as shortening a arms.

Speedway and Heidts both sell tubular a arms, that use a strut rod.

You may find that once it's all said and done, that you could get a whole new crossmember and save yourself a bunch of grief.

Later, mikey
06-13-2010 02:16 AM
71corvette
Quote:
Originally Posted by powerrodsmike
Looking at the pics of that crossmember, I would not put the tubular a arm conversion on it..It's not boxed, it looks like fairly thin material and the tubular a arms/ pivot tube don't do well when installed in a crossmember like that. It really looks like a donor car crossmember, which is about all anyone had back in the '70s...Those are really thin, and not suited for the tubular arms at all. There have been several threads about MII tubular A arm crossmember failures..

Here's one pretty good one that discusses some of these points.
http://www.hotrodders.com/forum/ifs-...ts-127985.html

Later, mikey
thanks, looking at it the top spring hat is a seperate piece from the crossmember and their are two mounting locations for the lower cntrol arm , would a donor be that way? I am not against strut rods and stamped control arms but I am trying to narrow my front track width. does anyone offer narowed stamped control arms? I could also fully box it in to strengthen it the bottom is already boxed . thanks for all the input
06-13-2010 12:15 AM
enjenjo Chevelle rotors will fit a Mustang spindle, if you use a combination of GM and Ford bearings, with the right seal. The telltale for this will be the spindle nut, the conversions use a thin nut, about 1/4" thick, with a thin captive washer on the back. Unfortunately, the kits are not all the same. Some used 69 to 72 rotors, some use 73 to 77 rotors, and some use 78 to 87 style rotors. unless you know which jit was used, you will have to compare parts to get the right one. All the kits use the samw GM Delco Moraine calipers.

I agree that crossmember looks too thin for tubular control arms, but you could use a tubular strut rod with the control arms you have now.
06-12-2010 11:04 PM
powerrodsmike
Quote:
Originally Posted by 71corvette
so should standard MII tubular control arms work? I measured them against the TCI ones I have on my 50 truck and they seem to be about the same
Looking at the pics of that crossmember, I would not put the tubular a arm conversion on it..It's not boxed, it looks like fairly thin material and the tubular a arms/ pivot tube don't do well when installed in a crossmember like that. It really looks like a donor car crossmember, which is about all anyone had back in the '70s...Those are really thin, and not suited for the tubular arms at all. There have been several threads about MII tubular A arm crossmember failures..

Here's one pretty good one that discusses some of these points.
http://www.hotrodders.com/forum/ifs-...ts-127985.html

Later, mikey
06-08-2010 01:18 PM
slow4dr
Quote:
Originally Posted by 71corvette
Fast 68 thanks for making me take another look at my pictures, my front track width is wider than i like and looking at that rotor explains some of it. look how deep that rotor is. it's almost like having wheel spacers
I would definitely try your other rotors on these spindles as they should work no problem fitting on the pin. I really think the only issue you may encounter is the caliper brackets due to the offset on the rotors.

06-07-2010 10:33 PM
71corvette Fast 68 thanks for making me take another look at my pictures, my front track width is wider than i like and looking at that rotor explains some of it. look how deep that rotor is. it's almost like having wheel spacers
06-07-2010 10:20 PM
71corvette
Quote:
Originally Posted by fast68
hmm intersting ive enver seen rotors with holes in them like that except maybe on 1 ton trucks etc, hmm. is that what is found on the 77 older stuff?

ive never really had any cars that old, they are too rare here,

ive only had 60s and 70s trucks trucks, so i am not sure,
also never seen calipers that say delco moraine on them., thats pretty odd looking to me also. interesting...

well the car is 74 years old and judging by the crushed velour interior and lacquer paint I would say it was customized sometimes in the 70's. the right rotor has holes the left does not.
06-07-2010 10:15 PM
71corvette [QUOTE=slow4dr]The rotor will be specific to the spindle. Luckily, that spindle is very common so you can get the Chevy 4.75" pattern rotors just about anywhere. CPP has some fairly cheap cross drilled ones. You may want to verify the backspacing and overall diamter between the two so you won't need new caliper brackets.

Part#'s
ARGX-8110L (LEFT)
ARGX-8110R (RIGHT)

You can get bearings and seals from them as well.

-J[/QUOTE

so you think standard MII rotors should fit theese spindles? I have a TCI MII setup on my 50 chevy truck maybe I should try swapping a rotor.
06-07-2010 07:43 PM
fast68 hmm intersting ive enver seen rotors with holes in them like that except maybe on 1 ton trucks etc, hmm. is that what is found on the 77 older stuff?

ive never really had any cars that old, they are too rare here,

ive only had 60s and 70s trucks trucks, so i am not sure,
also never seen calipers that say delco moraine on them., thats pretty odd looking to me also. interesting...
06-07-2010 06:19 PM
slow4dr
Quote:
Originally Posted by 71corvette
one more question, would the rotors be for the same applications as the calipers?

The rotor will be specific to the spindle. Luckily, that spindle is very common so you can get the Chevy 4.75" pattern rotors just about anywhere. CPP has some fairly cheap cross drilled ones. You may want to verify the backspacing and overall diamter between the two so you won't need new caliper brackets.

Part#'s
ARGX-8110L (LEFT)
ARGX-8110R (RIGHT)

You can get bearings and seals from them as well.

-J
06-06-2010 08:31 AM
71corvette one more question, would the rotors be for the same applications as the calipers?
06-03-2010 09:58 AM
slow4dr
Quote:
Originally Posted by 71corvette
so should standard MII tubular control arms work? I measured them against the TCI ones I have on my 50 truck and they seem to be about the same

Yes, they will work as a direct replacement with the welded sleeves to carry the pivot bolt. You'll just want to specify the arm length as they have a couple options. The weld sleeves are included when you buy the arms.
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