There are several threads on this topic, try the search button at the top right hand corner of the page under the 'post new topic' and 'post reply' buttons.

If you are rebuilding the box or have it drained, don't forget to use permatex type 2 or 2a non-hardening sealant on the threads.


'51 Chevy 1/2 ton w/'62 261, HEI, offy, fentons, dual carter/webbers, t-5 & 12 bolt posi