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Veteran
Posts: 108
| Hey guys,
I realize there are several threads on disc brake conversion that I have read over quite a bit. All great info. My question is I have a manual drum brake car that I am converting to front disc using aaj parts. I wanted to know if others that have done this have modified their brake pedal rod or left it as is. Thanks in advance.
Ken |
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Expert 5K+
Posts: 9670
   
Location: So. Cal | It all depends on which master you end up using. |
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Veteran
Posts: 108
| Oh sorry I forgot that part it is a dual master res from a 1970 imperial |
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Expert
Posts: 3398
Location: Chestertown, NY ( near Lake George) | If it has power brakes leave everything as is. If not you will find you will need more pedal pressure to apply the brakes, don't forget the appropriate proportioning valve. Mc bore size also affects pedal feel. Also the master should be the disc/drum type. Lotta things to consider to do this right. |
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Expert
Posts: 2196
Location: Muskego, WI | I have used Roger's disc kits on three 1960 and 1961 Plymouths, two of them I also installed his rear disc kits but the other I left the rear drums. All three installs were manual brake cars, I used a newer aluminum dual reservoir master cylinder with a 1.125" bore. All three turned out great, I used the Wilwood "Red" check valve inline to the rear drums on the one car. Disc brakes have large pistons in the caliper and therefore require you to move more volume, that is why the larger bore is required. I suggest you read this discussion linked below.
http://www.forwardlook.net/forums/forums/thread-view.asp?tid=68713&...
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Veteran
Posts: 108
| Thanks Shep and jboymechanic for responding. I have consulted with Roger and purchased a kit from him. He suggested using a 69-70 imperial mc with the 1.125 bore for disc and drum. I have read the other threads and it was all great information. Jboy did you need to modify your brake pedal rod. My car is remaining manual brakes.
thanks,
Ken |
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Veteran
Posts: 108
| Thanks Shep and jboymechanic for responding. I have consulted with Roger and purchased a kit from him. He suggested using a 69-70 imperial mc with the 1.125 bore for disc and drum. I have read the other threads and it was all great information. Jboy did you need to modify your brake pedal rod. My car is remaining manual brakes.
thanks,
Ken |
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Veteran
Posts: 108
| Thanks Shep and jboymechanic for responding. I have consulted with Roger and purchased a kit from him. He suggested using a 69-70 imperial mc with the 1.125 bore for disc and drum. I have read the other threads and it was all great information. Jboy did you need to modify your brake pedal rod. My car is remaining manual brakes.
thanks,
Ken |
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Expert
Posts: 2196
Location: Muskego, WI | Yes, I did have to shorten and slightly decrease the diameter of the pushrod from the pedal to the MC piston. |
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Veteran
Posts: 108
| Thanks for getting back to me. My mechanic has ordered an adjustable brake pedal rod from mancini racing so hopefully he can get that adjusted properly for the brakes to work. |
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1961 Dodge Polara front disc conversion
