78 different than 79 ??

[lsc ss]

Looking at Wilwood brake kits for the front but their listing goes from 79-87 then another one for 73-77. Looked at a couple other manufacturers and same thing. Isn't 78 the same thing as 79-87 ?? Makes no sense.

 

[srercrcr]

78 Gs were unique, as you suspected.
You can verify by compsring on the Auto Zone site.

 

[Phoenyx]

Wow really? I didn't know that. What is all different? And which of the two designs is better?

 

[lsc ss]

seems like the spindle size is the only difference, calipers, control arm bushings and ball joints are the same but the outer wheel bearing and the rotor are different. I guess I'll have to swap in a 79 & later spindle to make thse brakes fit.

 

[lsc ss]

Looking further although the rotor is different the 78 uses the same wheel bearings and ball joints as the 73-77 which tells me the spindle should be the same. I wonder if the brake kit from the 73-77 would work ??

 

[srercrcr]

I checked my Hollander. The 73-77 left side PN was 329349, the 78 was 459751, the early 79 was 14008691, and the late 79 to 85 was 14012601 (something to do with a provision for a cotter key.

 

[lsc ss]

Thanx srercrcr, guess i'll have to find a set of 79 spindles

 

[78MC-BBC]

dont just look for 79 spindles, look for any 79-88 g-body they all interchange.
my 78 monte has the spindles off a 87 grand national, i did my own version of a big brake swap.

 

[jrm81bu]

You can use the S-10 spindles too. 82-93 should be the same spindle as the 79+ g-body spindle.

 

[joe_padavano]

Looking further although the rotor is different the 78 uses the same wheel bearings and ball joints as the 73-77 which tells me the spindle should be the same. I wonder if the brake kit from the 73-77 would work ??

Lots of cars use the same wheel bearings. That doesn't mean that the spindles are the same.