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Mod | | | Forums66 Topics128,024 Posts1,055,395 Members48,422 | | 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: Dec 2002 Posts: 22 New Guy | | New Guy Joined: Dec 2002 Posts: 22 | GL4 hard to find just was looking for it online in Canada anyway and looks like it is going to be pricey .Anyone know if you can use synthetic or am I just asking for trouble like leaks everywhere along the tube to the rear ended . I use Sta-Lube 85w-90 GL-4 gear oil in transmissions with brass synchros. The part number is SL-24239. It's $30/gallon on Amazon. Napa has it for $38/gallon. https://www.amazon.com/gp/product/B000M8RYMC/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
1953 Chevy 3600
1998 Dodge 2500 Cummins 12 valve
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