Home » Public Forums » GMCnet » [GMCnet] Master Cylinders
| [GMCnet] Master Cylinders [message #138245] |
Wed, 10 August 2011 10:22  |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma:
|
Senior Member |
|
|
Here's some information I just ran down (again!) this morning that some may
find interesting. Mr.erf may want to plug it into the MC table also.
The cross reference application for the GMCMH master cylinder is 76
Chevrolet C20 pickup with 7.4L engine and JB7 brake option. That's for the
1-1/4" diameter bore. The corresponding Wagner number is F79821. AutoZone
number is MN1730, available new or rebuilt. This should also be the same as
the Raybestos 39075 or ACDelco 18M92.
For a 1.125" diameter bore, the same C20 reference can be used, but for JB6
brake option. The AutoZone number is MN1732. Wagner F101267, Raybestos
39009 or ACDelco 18M66
The best I can determine, this is all correct (mostly derived from
RockAuto), but perhaps others should check, because Mr.erf's Master Cylinder
Information table (partially supplied by me) shows the F79821 and 39075 as
1.125" bore. However, on the main Brakes page, 'way down, the 39075 is
described as 1-1/4" bore.
Finally, I'm about to order two of the 79821's from RockAuto on closeout.
$27.22. I was about to order one when I found the shipping for the $7.47
MC would be $12.22. For two MC's the shipping is $12.28. My son and I both
will have spares now. They'll have 7 left at $7.47 after my order.
Oh yeah, how I got onto this: In 2006 when I bought the X-PB, I needed a MC
NOW, so went to AutoZone in Hendersonville, TN and got a MN1730. It's now
giving Alan trouble, so I called AZ here in Americus with my phone number.
They'll have me a NEW replacement MC tomorrow.
Alan & son mostly installed the driver's side quad bag yesterday afternoon.
They'll finish that and the other side tomorrow.
Ken H.
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
|
|
|
|
Current Time: Fri Oct 11 05:17:21 CDT 2024
Total time taken to generate the page: 0.05789 seconds
|
GMCforum
Search
Help
Register
Login
Home
