Vintage Mustang Forums banner
Cancel

Wilwood swap on 66 mustang, assorted questions

2412 Views 7 Replies 5 Participants Last post by  Nailbender, 
6
Planning on doing a wilwood swap in the spring (All 4 wheels), from granadas (Front)/drums (rear). Have a 9" 'big ford' (2.36" offset) rear and 15x7 3.75" backspace TT2s. More details below.

Mostly looking at Wilwood because SSBC, when I checked, only offered 11" rotors, which aren't much bigger than my granadas. If I'm going to drop 2-3k, well.. size matters and such.

Anyway, questions:
1. Spindles - I know my granada spindles will not work. I have heard 1970 spindles are the best classic option, with direct fit to 66' but with more beef, but also was told require a bigger bearing. In at least one place, they stated I should get (or need) other suspension components if i go with 67-70 spindles... pittman arm, etc. What are my options? I found a good condition 67 spindle; what would it take to use that?

1a. Where should I get said spindles? I've checked ebay, talked to CSRP about theirs (Theyw ere the ones who said i'd need new pittman arms etc).

2. Fitment with wheel - I see 11.3", 11.8" and 12.19" rotor options. I know the 15" TT2s are pushing it with both the latter two, but they do list 15" is as the minimum required size. Does anyone have experience here?

3. Rear kits - I only see one rear disc kit for a 66 mustang on summit (Versus 45 or so front kits). Are there other kits i should consider (which perhaps are not marked as compatible with the 66', perhaps due to me having a 9")?

4. NPT fittings - I've seen some reviews saying there is some weirdness when it comes to Wilwood and hoses/npt fittings. What exactly do I need for this all to work?

5. I've very excited to have a working parking brake (my car never has), but did note this as a suggested part - is it necessary?: https://www.summitracing.com/parts/wil-140-14415

6. Reviewing the article below, they say they needed a rotor register adapter... how do I know if i need that?

Thanks!

Background:

Currently have a granada setup on the front and slick black-painted drums on the rear. Moving the car across country and this is the last time I'll have a garage for a while, so nows the time.

On the rear, I have a "Big Ford" 2.36 offset 9" rear. Currently running 15x7 TT2s with a 3.75" offset (yeah, i know, should be 4.25/4.5.. even with fender roll theres the occasional rub). Master cylidner is p/n 29867-C... Pivot to center =12", pivot to pushrod =2", which is 6:1, I believe from a 67 but which also appears correct for a 66 mustang

Looking at these front kits:
4 piston, 12.19" rotor: https://www.summitracing.com/parts/wil-140-11072-dr
6 piston, 12.19" rotor: https://www.summitracing.com/parts/wil-140-12947-dr

And on the rear, this:
https://www.summitracing.com/parts/wil-140-12589-r/overview/year/1966/make/ford/model/mustang

Obviously those are 12.19" kits, which I'd want but if it won't fit I'll go smaller. Also would like slotted discs both front and rear (i know, vanity talking); which is one reason I'm looking for other kits that might work since the kit above doesn't have them.

THreads I have viewed:
CSRP spindles: https://forums.vintage-mustang.com/mod-custom-forum/906641-csrp-spindles-65-a.html
C6oa: https://forums.vintage-mustang.com/vintage-mustang-forum/605258-c6oa-3108f-3107f-spindles.html

Install article: How to Install Wilwood?s Four-Wheel Disc Brakes
See less See more
Reply
Save
Like
1 - 8 of 8 Posts
GT289
Jeeze..... where’s that popcorn eating gif when I need it?

Standby to be inundated with opinions and suggestions.

ex-Global West GM
1991-1995
Reply
Save
Like
  • Like
Reactions: 1
Shaun @ Street or Track
Give me a call if you like. I'm happy to answer ALL of your questions. However, I will explain to you what you will and won't need, what works and what doesn't as well as try to sell you our brake systems.:wink: See, everything you need will be included in our systems and I know these old cars like the back of my hands.

Wilwood make very nice stuff, some of it a little too lightweight for my taste depending on which system. You'll have to add in a lot of little bits and bobs they don't include in the kits. Frustration increases so does the price. I know what you will and won't need and I'll make sure you have everything along with instructions.
Reply
Save
Like
  • Like
Reactions: 3
Ojenkins
I can't speak to all of the spindle questions but I have the 11.3" Wilwood front brake kit on my car. Bolted right up and included all the needed parts, though I did have to modify the brackets a bit to fit my spindles (manufacturing tolerances in '67 were a bit questionable I think!).

No problems with the hoses, I was able to attach them to the stock brake lines (though I replaced the stock ones anyway).

As far as size, I'm running 14" Wheel Vintiques Mag 500s up front. They are a bit tight but they do fit and don't rub at all, so with 15s I assume the two smaller options should work. Larger one might also but riskier.
Reply
Save
Like
6
GT289 said:
Jeeze..... where’s that popcorn eating gif when I need it?

Standby to be inundated with opinions and suggestions.

ex-Global West GM
1991-1995
Click to expand...
If i can be entertaining while I grouse for wisdom from the old fol... er.. veterans, all the better!

Its my first big project in a while. New here but have been on stangnet and fordmuscle for 15 years or so. That said, the newb deserves what he gets :)

And yes, feel free to tell me trying to go with the biggest rotor on a car that never gets raced is a waste of stress and money. Its almost certainly true but I've always been a "since its apart anyway..." kind of guy
Reply
Save
Like
Nailbender
I also find myself looking at the Wilwood 12.19" front brake kits. I'm looking at the 4 piston kit with the dust boots. https://www.summitracing.com/parts/wil-140-13344It's a street car and the factory figured dust boots were necessary on the caliper and I find it hard to disagree. I don't plan on going with the drilled and slotted rotors because the guys I autocross with say they crack between the drilled holes when auto crossing. Unfortunately, Wilwood does not currently offer rotors that are only slotted.

As far as big bearing spindles go, CSRP does or did have 65-66 1.4" drop spindles in stock. Mine arrived yesterday.

Attachments

See less See more
Reply
Save
Like
  • Like
Reactions: 1
6
Nailbender said:
I also find myself looking at the Wilwood 12.19" front brake kits. I'm looking at the 4 piston kit with the dust boots. https://www.summitracing.com/parts/wil-140-13344It's a street car and the factory figured dust boots were necessary on the caliper and I find it hard to disagree. I don't plan on going with the drilled and slotted rotors because the guys I autocross with say they crack between the drilled holes when auto crossing. Unfortunately, Wilwood does not currently offer rotors that are only slotted.

As far as big bearing spindles go, CSRP does or did have 65-66 1.4" drop spindles in stock. Mine arrived yesterday.
Click to expand...
What size/backspace wheel are you running? Have you fit checked them?
Reply
Save
Like
Nailbender
I'm running 17 x 8" 4.82" Back spacing Torque Thrusts. Probably won't know anything fitment wise until the long new years weekend. I'm thinking outer tie rod to rim/tire is going to be about an 1/8" clearance. The Wilwood kit does move the hub out an additional 1/16+". Won't be making a disk brake decision until I see how the drop spindles play with the drum brake hubs, tire and wheel stuff.
Reply
Save
Like
1 - 8 of 8 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Vintage Mustang Forums
A forum community dedicated to vintage Ford Mustang owners and enthusiasts. Come join the discussion about restoration, modifications, NOS parts, troubleshooting, VIN codes, and more!
Full Forum Listing
Explore Our Forums
Vintage Mustang Forum Mod and Custom Forum Want Ads Concours Forum Build Forum
Top