I am restoring a 1972 Sun Coupe. I have been told that there are 14" Buick Rally wheels that are especially made for disc brakes. (allows the calipers to clear) Is this correct? Is there a part number or way of telling which are for disc brakes?
OK. what gives??? Im lost on this question.....I got 14''buick rally wheels on the disk brakes..... I dont have any fit problems.... The rear wheels(drum) come off the car easier than the front (disk) but all need to do is kick them one or twice and they pop right off.
That was a 1968 and earlier thing .they had 4 piston calipers that wouldn't clear standard rims..Chevy rally rims with buick centers were used .You will be fine. cheers Tim
I appreciate the input. So is the 14" wheel an issue with doing the front brake conversion from power drums to power disc?
If you use 69-72 or newer 14” rims you will be fine. I don’t think the 64-67 14” rims will clear the 69-72 style disc calipers. The disc brake compatable rims will have “JJ” stamped into them. Duane
I have '68 14" Rally wheels on the 1969 calipers (whole disc system from a '69 442) and they fit fine, So I think the 1968 14" rally are good too. I think Duane could have said 68-72 or newer?
Reviving this thread... I have a 68 GS 400 that I'd like to do a disc brake conversion on. Wondering if the set of "WO" rims with the 4" offset will work okay if I swap out the drums for disc. I know these rims will clear the caliper so I am not worried there. However, it looks like most kits with the later spindles will increase my front end offset by 3/8" (or 3/4" from side to side). Seems to make sense to use the rims with a 4" offset because that would make up for the added offset from the brake swap but what about front and the rear tires lining up? Seems like the rear would be 3/4" different from the front measuring side to side, or maybe I am adding wrong or maybe it really doesn't make a difference..... Can anyone help me figure this out? I guess in a perfect world I would just get all the period correct parts or else I should just keep the drum brakes up front.
Depends on the brake kit involved. My MBM kit won't work with 14 wheels. Since mine had 15" wheels already, only the spare was a problem.
@Premier 350 Wondering if you went with MBM because you are near Asheville. If so, any opinion on Pirate Jack's? I was actually looking at both places for brake kits. Looks like MBM is an actual business, not sure about Pirate Jack...Thanks for the info tho! I'm pretty sure I am going to lose my drum brakes but wanted to make sure I can buy aftermarket spindles or I should just get the correct stock spindles. Maybe they are actually the same and just the steering arms are different? Later 14" rims (the WO for instance) should fit over stock calipers.
Nowhere near Ashville, I call Australia home. LOL. I went with Pirate Jack because their shipping was really cheap via Ebay. My kit included new spindles. Was not quite the bolt in I expected. One caliper bracket needed some 'massaging" and I ended up fitting a Willwood resuidial pressure valve into the rear brake line. From memory I went for a larger bore on the master cylinder, probable should have gone for a smaller bore. It stops OK, but a high pedal pressure. S Sorry for the late reply.
G’day Mate and thank you for the info. Looks to me like most of these “kits” are going to be exactly the same. I’m looking at the kit from CPP now because their shipping is reasonable. Shipping to Australia is crazy expensive. I can only imagine. Always appreciated that Australia had Holden keeping the 3.8 alive but I guess by now that brand is more frustrating than anything. Hope you guys are having a great day.
