| Slant Six Forum https://slantsix.org/forum/ |
|
| rear wheel cylinder bore size question https://slantsix.org/forum/viewtopic.php?t=52070 |
Page 1 of 1 |
| Author: | Ed Mullen [ Tue May 14, 2013 10:52 am ] |
| Post subject: | rear wheel cylinder bore size question |
what size cylinder should I use after a 73-76 disc/10" drum manual brake conversion (70 Valiant w/all 9" drums)? |
|
| Author: | WagonsRcool [ Sun May 26, 2013 8:39 pm ] |
| Post subject: | |
Since no one else has chimed in, I would start out with stock size cylinders for the rear 10" drums on a 73-76 disc brake car. I'd also consider going with an adjustable proportioning valve instead of the stock combo valve from the disc car. |
|
| Author: | DusterIdiot [ Sun May 26, 2013 9:40 pm ] |
| Post subject: | Yep. |
I'd go with stock cylinders from same said year of car. The prop block is a point of contention as 2 different combo valves were used in those years, one is just hollow and drilled for the appropriate valving sized and most common in 1973-1975 cars....1976 (and certain later F-bodies) drum cars got that valve, and the disc brake cars got one that is much like those seen on the disc brake E-bodies, these seem to work better than the former version (probably because the 1973-1974 OEM caliper bores were slightly smaller, and the rear cylinders were of a different bore). -D.Idiot |
|
| Author: | Ed Mullen [ Mon May 27, 2013 12:38 pm ] |
| Post subject: | |
Thanks for all the replies. Since posting this I found that I'd have to change my rear do do 73+ brakes. (I didn't want to change rims or rear.) I got stuck buying new front drums (old one warped). I may as well get my money's worth out of that setup for now. Should I return to this line of thinking (i.e. 73+) I don't know what the stock size is. (Rockauto lists like 4 different bores for every applicable year of every a body) |
|
| Author: | DusterIdiot [ Mon May 27, 2013 12:47 pm ] |
| Post subject: | It's... |
15/16" is correct for the LBP 10" rear drum brake rear cylinders. -D.Idiot |
|
| Author: | emsvitil [ Mon May 27, 2013 3:47 pm ] |
| Post subject: | Re: It's... |
Quote: 15/16" is correct for the LBP 10" rear drum brake rear cylinders.
-D.Idiot And I think 13/16 is used if you have a rear brake locking first problem with the 15/16 |
|
| Author: | DusterIdiot [ Mon May 27, 2013 5:32 pm ] |
| Post subject: | Yep... |
Quote: And I think 13/16 is used if you have a rear brake locking first problem with the 15/16
Yep, those were used with the 73-74 smaller front caliper bores...expect a little harder pedal to get it to stop.-D.Idiot |
|
| Page 1 of 1 | All times are UTC-08:00 |
| Powered by phpBB® Forum Software © phpBB Limited https://www.phpbb.com/ |
|