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Mod | | | Forums66 Topics128,079 Posts1,056,286 Members48,441 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Sep 2008 Posts: 57 'Bolter | | 'Bolter Joined: Sep 2008 Posts: 57 | Dan, Here is a link to the 67-72 Chevy Truck site which references the axle prefix code, the post is 10 posts down. According to the ref, the RAK prefix for 1972 is a 4.10 open dif. When the wrecker is talking about open diff he was referring that it is not a posi. Your best bet is to count the teeth on the ring gear to make sure, as Grigg says you never know what someone has done to a truck over the years. The link is: http://67-72chevytrucks.com/vboard/showthread.php?p=6534796Hope this helps Dave
1966 Chevrolet Caprice 2 Door Hardtop (396 Big Block)
1951 GMC 9434 5 Window (waiting on a 292 transplant)
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