Text only | Text with Images

Lazy Daze Owners' Group

Lazy Daze Forums => Lazy Daze Technical => Topic started by: Lazy Bob on October 29, 2025, 11:00:29 pm

Title: Brake Master Cylinder Replacement
Post by: Lazy Bob on October 29, 2025, 11:00:29 pm
Need to replace brake master cylinder on 85 LD 22'
Need info on correct replacement is there a serial #
or specific info I need to give to the Autoparts store guy?
Thankyou in advance
Title: Re: Brake Master Cylinder Replacement
Post by: RonB on October 30, 2025, 12:31:03 pm
Welcome to the Lazy Daze Owners Forum.  Answers will be forthcoming from someone who used to own an '85 and are members here on the Club.  RonB
Title: Re: Brake Master Cylinder Replacement
Post by: Larry W on October 30, 2025, 04:06:58 pm
Assuming you have a Chevy G30 chassis with dual rear wheels and a hydraulic, hydroboost brake unit. This is the master cylinder that Rock Auto shows for your rig.
RAYBESTOS MC39309
More Information for RAYBESTOS MC39309 (https://www.rockauto.com/en/moreinfo.php?pk=309627&cc=1047877&pt=1836&jsn=690)

Rock Auto may be the best source of parts. I use them all the time. Napa is another good source of parts for antique motorhomes.

We owned a 1983 LD for eight years, so I have experience with LDs of your vintage
.
Larry
Text only | Text with Images