Pirate 4x4 banner
1 - 13 of 13 Posts

·
Registered
Joined
·
104 Posts
Discussion Starter · #1 ·
hey all - i'm just wondering - i've got a '79 fullsize 44 from a big bronco up front - and i've never been able to get good enough brakes (especially now w/ 4.3 low range). SO, i'm wondering - is there a larger caliper (dual piston, larger piston, etc) that will bolt into this 1/2 ton front end? the parts guys around here are pitiful, and won't let me see their books.. i'm hoping that some of the 3/4 or 1 ton trucks, maybe camper specials, used the same caliper bracket...

thanks in advance!
 

·
Registered
Joined
·
5,482 Posts
Go to 8-lug. Then you can use those meaty twin-piston jobbies the F250/F350 use.
 

·
Registered
Joined
·
19 Posts
You might consider 4 or 6 piston Wilwood calipers. Lee Novikoff was able to squeeze 4 piston Superlites with 12.5" rotors inside 15" wheels using a modified Chevy caliper bracket.
 

·
Registered
Joined
·
5,482 Posts
Originally posted by kincade b:
<STRONG>why do you have to go to 8 lug to use those calipers???</STRONG>
Because the 8-lug rotor is a larger diameter.
 

·
Premium Member
Joined
·
1,454 Posts
Originally posted by u2slow:
<STRONG>Because the 8-lug rotor is a larger diameter.</STRONG>
Much larger. To get the braking your looking for is going to take some changes. Better to bite the bullet, go 8 lug, I think your running a rear 60 now arn't you? use the 78-79 F250 dual front calipers cause they are bigger than the later 60 ones. Your also going to have to go to 16 or 16.5 wheels because they are so big. There is also the ones Lee used. Either way to stop it with big tires and your gearing combination it's going to mean changes, and going 8 bolt will be the easiest. Remember "Cause and effect" <IMG SRC="smilies/biggrin.gif" border="0">
I'll be going to 16.5 wheels because a friend of mine is making 16.5 beadlocks and adding an inner safety bead to end the wheel problems in that size.
 

·
Registered
Joined
·
100 Posts
OK, educate me.

I understand why large tires need beefier brakes.

I DON'T understand why the gearing effects brake effectivness...unless the extreme ratios just go with the big tires...But the first post in this thread seems to say that the lower gearing made the problem worse. <IMG SRC="smilies/confused.gif" border="0">

[ 09-26-2001: Message edited by: Sparkey in a no-spark ]
 

·
Registered
Joined
·
1,857 Posts
The lower gearing makes it easier for the engine to turn the axles. think of a teeter totter when it is centered the force used to push one end down has to be greater than the weight of the object on the other end. Now if you move the pivot point closer to the heavy object it takes less force to lift that object. If you want to try this with gears borrow a friends 5spd truck or car as far as that goes then try to take off in 5th gear then try to take off in 1st gear you will notice a BBBBIIIIIGGGG difference.
 

·
Registered
Joined
·
100 Posts
I read that, and said "so just push in the clutch when braking" and then the light comes on. No need for me to go a borrowing, never owned a vehicle with an automatic transmission....which explains why I didn't understand at first.

[ 09-26-2001: Message edited by: Sparkey in a no-spark ]
 

·
Registered
Joined
·
104 Posts
Discussion Starter · #10 ·
ok - i understand that the rotor in a 8 lug setup is larger - however, why can't you use the larger 3/4 ton caliper w/ the smaller 1/2 ton rotor? i know the leverage isn't as good w/ the smaller rotor, but you'd still be gaining a larger caliper w/ dual instead of single pistons.

FWIW, i'm running a new 9" rear, and new 15" rims all the way around. so i'd REALLY like to stick w/ 5 lug if i can.

could the 8 lug, 3/4 ton setup be installed and redrilled for the 5 on 5.5? or will it not fit under a 15" rim?

i'd definitely consider the wilwood caliper and a larger rotor, if it didn't take so much custom fabbing...
 

·
Registered
Joined
·
1,434 Posts
Originally posted by Sparkey in a no-spark:
<STRONG>I read that, and said "so just push in the clutch when braking" </STRONG>
Sometimes when going really slow, especially off-camber and downhil or such, you don't want to put in the clutch, just slow down - with super low gearing the engine may push you along faster than you want.

So does anyone know what all Lee had to modify? - I'd be interested my self.

[ 09-26-2001: Message edited by: BRS ]
 

·
Premium Member
Joined
·
1,454 Posts
Originally posted by kincade b:
<STRONG>ok - i understand that the rotor in a 8 lug setup is larger - however, why can't you use the larger 3/4 ton caliper w/ the smaller 1/2 ton rotor? i know the leverage isn't as good w/ the smaller rotor, but you'd still be gaining a larger caliper w/ dual instead of single pistons.

FWIW, i'm running a new 9" rear, and new 15" rims all the way around. so i'd REALLY like to stick w/ 5 lug if i can.

could the 8 lug, 3/4 ton setup be installed and redrilled for the 5 on 5.5? or will it not fit under a 15" rim?

i'd definitely consider the wilwood caliper and a larger rotor, if it didn't take so much custom fabbing...</STRONG>

That's the main problem. You have started a lot of custom modifications and 'fabbing'. You got to keep 'fabbing' till you get it the way you want it. That's one of the things about doing custom work, nobody makes bolt on stuff for all the different things people are doing.
 

·
Registered
Joined
·
2,540 Posts
So Kincade asked this same ? on the EBML and got this answer, from Todd Z. Just thought the few people on this page that aren't on the EBML might be interested too.


>I know someone on the lists was asking about options for upgrading the
>front calipers on the 44s that use the '76-'77-style Ford disc calipers.
>I stumbled onto something today that I haven't seen discussed on the
>lists as of yet.
>
>Like some of you, I like to use the rear discs off late '70s Lincolns on
>the EB rear ends. I recently started wondering if the front discs on
>these cars would fit on the '76-'77 D44 front ends. I was on one of my
>junkyard forays today and pulled a caliper off a Lincoln and took it over
>and tried it on the front end of a '78 F-150(same as the '76-'77 EB).
>Sure enough, it fit! The casting is identical, they use the same
>pads...the only difference is the Lincoln has a piston diameter of 3
>3/32" vs. the 2 7/8" EB piston diameter. If I did my math correctly,
>this translates out to a 15.7%(let's say 16%) increase in piston area,
>which is a good thing. I have no idea what this translates into in
>terms of braking performance improvement, but it's probably good for
>something.
>
>It's not the 6 piston, fixed caliper upgrade that I'm sure some of you
>are looking for, but if you're doing a Ford disc swap anyway, this might
>be one upgrade worth looking into. These cars use 15" wheels, btw.
>
>These calipers are used on a lot more than the Lincolns. I'll post all
>the applications when I'm able to check the Hollanders manual at the
>library.
 
1 - 13 of 13 Posts
Top