Hello all I found a pretty nice front drum to disc conversion kit I'm thinking about buying, but they only list it for 64 to 72 chevelle, will it also fit my 67 Skylark?
Yes, the same kit will fit all A-body cars - GS included. Search the board for other threads though about these kits. Most of them come with Chinese made spindles, and there is much talk about them failing. I bought a pair of 2" drop spindles made in the USA by McGaughy's, and I plan to build my own kit around it. I believe they make standard height spindles too. Do some more research so you can make a more informed decision. Best Wishes,
Im doing the conversion myself with factory drum spindles. Just cut the top bolt boss and put a stock 68 and up factory set of everything on. The brackets you need are online everywhere including ebay and inline tube. Everything else is at the local parts shop. The single caliper piston is used and a gazillion autos including trucks so you can get it to work instead of the old obsolete design 2 piston set.
Troy I've been watching your post's about doing your own kit with part store items, I would defiently go that route but I want to drop the car about 2" using drop spindles, So I am going to need aftermarket. But I'll probably use your Idea on my 64 impala if it's the same? Joe I'm aware of cheep China products and plan to stay away! I've been looking at Kit# (67FRBKDMS) on CPP's website. They offer a pretty nice front and rear kit with forged Spindles. the web site lists kits for 64 -72 chevelle, They list them as follows 64 to 66- Chevelle 67- Chevelle 68 to 72 Chev What is special about the 67 that it is by it's self? As for the rear- does the Buick GS share the same rear end as Chevelle? I've seen 12 bolts advertised for these cars, but I think mine has a stock 10 bolt? The reason I'm asking is because I plan on buying the rear brake kit also. They also give you a choise of what size brake booster, what size is stock on my car- 9 or 11?. Thanks Jeremy
Hey Jeremy, I have been looking at CPP for a long time. The only thing I would ask them about the kit you referred to is if it includes their improved drop spindle (CP30100). My guess is no. The new spindle looks remarkably similar to the McGaughy's spindle I purchased on ebay for under $200. It has been a while since I did my research, but I think another "problem" with that kit is the S-10 calipers are smaller than the '69-72 A-Body caliper. And the hoses are metric on the S-10 calipers (I believe). The '67 came with a 11" booster, so for a stock appearance you would want that. Otherwise it doesn't really matter unless you have clearance issues when installing headers. It costs extra for the GM Restoration Parts version with the Delco stamp on it by the way - another appearance thing. The '67 is listed separately usually when talking about spring packages. The front springs are the same from '64-'67. The rear spring perches on a '67 are the same as the '68-'72 whereas on the '64-'66s the springs are bolted to the axle housing. The rear ends on the '67s are 10-bolt 8.2" BOP (Buick-Olds-Pontiac) design and they are not interchangeable with the Chevy. Check the "Got Gears" section for anything you want to know. Also check http://buickperformance.com/85rear.htm for info on swapping to a 8.5" rear. I hope this helps.
Hey Joe Good Info! I plan on keeping the stock rear in the car for awhile, so no swaping plans in the near future. I'm wondering if I was to order the Front/Rear drum to disc kit from CPP if the backing plate mount holes and axle hub dimentions were the same as BOP? I know that its measurments that I could just go out and get from my car but I'm overseas right now and want to order a kit so its waiting for me in July when I come home on vacation (I only have 3 weeks at home) I'm putting 17" Intro wheels on her and currently have drum all around. Also on the spindles, I would (if they didn't come with the kit) have the upgraded spindles added for extra$. Thanks Jeremy
67s used a different caliper originally. That may be the reason that they charge a different price. If your going to drop her then possibly look at using the taller spindle from the Cameros and Firebirds and change your upper control arm giving you american metal, and then improving your suspention to a negative roll system like modern cars.
Hey Jeremy, I think the center section is the only part that is different on the BOP vs Chevy. The same rear brake kit will work on all A-body cars since they are the same from the center section out. Actually, I'm not really sure why CPP only advertises these as Chevelle. Check with Matt's Classic Bowties on ebay. He sells the CPP kits to. As for the Spindle swap, I don't think it can be done. The kit you are looking at uses an integrated lowering spindle with caliper mount and steering bracket. The new lowering spindle requires you to transplant your current steering bracket and to use a caliper bracket only compatible with the '68-72 calipers (sometimes called "full-size" or "large" by these kit makers). You may want to look at their standard height kit with "large" calipers and ask them about the spindle swap with it. I decided to go with lowering spindles to maintain the suspension travel you get with stock springs. Lowering springs are an alternative. I guess it comes down to personal preference. I decided to piece mine together using the spindles I bought, caliper brackets, backing plates, booster and proportioning valve from MBM (http://www.mbmbrakeboosters.com/), and Raybestos rebuilt calipers from rockauto.com. (Nobody in the US makes NEW calipers - so read NEW CHINESE calipers whenever a kit maker says "all new parts"). I plan on doing only the fronts to same some money. I look at many new fullsize utes and trucks out there that still have rear drums, so I figured I'll try it before sinking $800 into rear disks. Best Wishes,
Troys69GS is correct IF the car came with front disk brakes from the factory. They used a 4-piston caliper in '67 only. But an all drum system would be the same parts from '64-67, possibly up to '72.
Hey Guys Thanks for all the info. I talked with Matt from Matt's Classic Bowties and Im going to get a kit from him, He sells the new forged drop spindle's and large calipers. It's going to be more expensive than if I was to piece it together, but it needs to go on the first few days after I get home for me to make it to the Car Craft Nats. I'll post some pics when I get it finished!
Hey Jeremy, Please do post some pictures! I am glad that you made a decision that works for you under your time constraints. Yes it may have cost a bit more, but you are talking about your car's stopping power - and safety is a must. I am also glad it sounds like you had a good experience working with Matt. Best Wishes,
