Re: upsizing to 5 on 4.5

[Ray Bell <raybell46@xxxxxxxxx>]

I meant front wheel bearings...

As I explained, in the late sixties the Valiant Pacers were used to set long distance speed records using Sandown Park racing circuit. But the weak link was the front wheel bearings and some cars didn't make it. In 1970 they set to it again, now with vented discs on the 5 x 4.0" pattern hubs. But wheel bearing sizes were the same and now they had the extra power and speed of the Hemi 6 engine they had more failures.

In 1971 the upgrade to bigger wheel bearings took place along with the 5 x 4.5" bolt pattern. These bearings are not as big as the bearings on the B-body cars, but they did overcome the problem and allowed the A-body enthusiast to swap the later spindles with the 4.5" bolt pattern readily onto the earlier cars.

As for the rear end, we lost the 7¼" Chrysler rear end in 1967. There was a crucial need to put more Australian content into the cars as it affected the tax level and therefore the selling price for the cars. A Borg-Warner rear end was substituted, it had bigger axle splines than the 7¼, but was not as hefty as the 8¾" units which never came here in the A-body.

It is possible - I have a jig for the purpose - to re-drill the early Borg-Warner axles to the 5 x 4.5" pattern, but this cannot be done with the 7¼ 5 x 4.0" axles as the access holes for the retaining bolts don't allow it. A neat job of this includes putting spacer rings on the wheel register to take it out to the same size as B/C body size and using the later brake drums.

Ray

-- 
-- 
--
Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks!
 
1962 to 1965 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html.
-- 
You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group.
http://groups.google.com/group/1962to1965mopars?hl=en.

--- 
You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group.
To unsubscribe from this group and stop receiving emails from it, send an email to 1962to1965mopars+unsubscribe@xxxxxxxxxxxxxxxx.
For more options, visit https://groups.google.com/d/optout.