ClassicOldsmobile.com - Drivetrain/Differentials http://classicoldsmobile.com/forums en Fri, 20 Nov 2009 22:40:28 GMT vBulletin 60 http://classicoldsmobile.com/forums/images/misc/rss.jpg ClassicOldsmobile.com - Drivetrain/Differentials http://classicoldsmobile.com/forums 12 vs 10 bolt http://classicoldsmobile.com/forums/drivetrain-differentials/18062-12-vs-10-bolt.html Tue, 17 Nov 2009 18:14:42 GMT On my '72 Cutlass project I have a Olds 12 bolt rearend and I just aquired a 10 bolt off of a '72 Cutlass 442 (350)...both rearends are non-posi...are there any real differences between these combinations? ]]> Drivetrain/Differentials ozbie http://classicoldsmobile.com/forums/drivetrain-differentials/18062-12-vs-10-bolt.html Differential Question http://classicoldsmobile.com/forums/drivetrain-differentials/17922-differential-question.html Wed, 11 Nov 2009 03:25:54 GMT How are the axles in a '71 442 with a posi-traction rear end secured? That is, are they kept in the carrier by 'c' clips or do the bolts out on the end of the axle secure them? ]]> Drivetrain/Differentials redvettemike http://classicoldsmobile.com/forums/drivetrain-differentials/17922-differential-question.html 303 http://classicoldsmobile.com/forums/drivetrain-differentials/17867-303.html Mon, 09 Nov 2009 22:03:31 GMT Hi! I just bought a 1951 303. Does it fit in my 1954 Rocket 88 (324) without Problems? Hi!
I just bought a 1951 303.
Does it fit in my 1954 Rocket 88 (324) without Problems? ]]> Drivetrain/Differentials burnout-dave http://classicoldsmobile.com/forums/drivetrain-differentials/17867-303.html Help with the dreaded 2.56 ratio differential http://classicoldsmobile.com/forums/drivetrain-differentials/17821-help-dreaded-2-56-ratio-differential.html Sat, 07 Nov 2009 22:53:26 GMT I'm about to go through the differential out of my '71 Supreme Convertible. As expected, it's the dreaded 2.56 ratio. It is my understanding that the carrier won't accept a gear swap without a spacer and longer bolts. I really want to put a limited slip unit in anyway, so I'm I correct that the housing (stamped R6 if I remember correctly) will be fine and if I'm going to change carriers then the whole 2.56 stock carrier problem doesn't matter? What I'm hoping is that my housing will work fine with a limited slip (Eaton or other) and 3.42 gears. Thanks for any advice! ]]> Drivetrain/Differentials LIMEGREEN71 http://classicoldsmobile.com/forums/drivetrain-differentials/17821-help-dreaded-2-56-ratio-differential.html <![CDATA[Less RPM's]]> http://classicoldsmobile.com/forums/drivetrain-differentials/17800-less-rpms.html Sat, 07 Nov 2009 03:15:30 GMT I have a nice '71 442. It has a th400 and the standard rear end for an a/c car (3.23?). This trans/gearing gets me close to 3000rpm at 70mph. I have been considering some options on reducing the engine operating speed. I have considered a 700r4, a 2004r, a Gear Vendor overdrive unit to try to lower the rpm's (at age 60 I am much more interested in highway cruising than 1/4 mile performance!) I am giving some consideration to going to a higher rear end ratio (actually a lower #) A ratio of 2.72 or 2.56(+/-) would give me the type of cruising rpm's that I want. Will the rear end in this car (all original Olds posi unit) allow the replacement of the existing ring/pinion with the ratio's mentioned?
Thanks for any advice. The engine is the original (but rebuilt) 455. The th400 is the original trans and has been rebuilt 7k miles ago by a prior owner. ]]> Drivetrain/Differentials redvettemike http://classicoldsmobile.com/forums/drivetrain-differentials/17800-less-rpms.html Will this fit my rear? http://classicoldsmobile.com/forums/drivetrain-differentials/17597-will-fit-my-rear.html Thu, 29 Oct 2009 22:42:10 GMT Haha insert joke here right. It is a really nice cover. I have seen them in person and I am considering buying one. They have an O ring seal,... Haha insert joke here right. It is a really nice cover. I have seen them in person and I am considering buying one. They have an O ring seal, dipstick and magnetic drain plug. Very trick if you ask me. I know I am going to be doing a Big brake upgrade so the rear axles will need to be pulled. So if I am doing this I might as well chaneg the rear gear and add a posi and if I do all that adding one of these would strengthen the case maybe help keep the rear cooler due to the finned cover and added fluid capacity. So good idea? And will it fit?
http://www.mag-hytec.com/store/index.php?main_page=product_info&cPath=2_10&produc ts_id=33&zenid=49c71f90fdc6fcfd0031efbaf03241bd

http://www.mag-hytec.com/products.htm ]]> Drivetrain/Differentials The Stickman http://classicoldsmobile.com/forums/drivetrain-differentials/17597-will-fit-my-rear.html W-27 option http://classicoldsmobile.com/forums/drivetrain-differentials/17589-w-27-option.html Thu, 29 Oct 2009 04:46:56 GMT Was this cover used to add strength to the rear end? I like it but want something to strengthen my BOP 10 bolt. Was this cover used to add strength to the rear end? I like it but want something to strengthen my BOP 10 bolt.
Attached Images
File Type: jpg w27.jpg (59.5 KB)
]]> Drivetrain/Differentials t bell http://classicoldsmobile.com/forums/drivetrain-differentials/17589-w-27-option.html quick change rear end http://classicoldsmobile.com/forums/drivetrain-differentials/17582-quick-change-rear-end.html Wed, 28 Oct 2009 23:08:16 GMT Anyone here used them? Planning on it. Easy way to have dual purpose rear,able to have rear disc cheaply. That way I can drive to the strip,change... Anyone here used them? Planning on it. Easy way to have dual purpose rear,able to have rear disc cheaply. That way I can drive to the strip,change gears in 20 min and have a lot of fun,then change back and go home.What are your thoughts? ]]> Drivetrain/Differentials 71 delta88guy http://classicoldsmobile.com/forums/drivetrain-differentials/17582-quick-change-rear-end.html differential leaking http://classicoldsmobile.com/forums/drivetrain-differentials/17464-differential-leaking.html Sun, 25 Oct 2009 01:46:07 GMT i have my 73 olds 98 up in the air ready to undercoat it...I noticed the pinion seal leaking,,,,I dont seem to see the drain plug..i see the plug to...
i have my 73 olds 98 up in the air ready to undercoat it...I noticed the pinion seal leaking,,,,I dont seem to see the drain plug..i see the plug to fill it and check fluid level...Am i missing something or is there no drain plug...Also how hard is it to change the seal...
]]> Drivetrain/Differentials 1973olds98 http://classicoldsmobile.com/forums/drivetrain-differentials/17464-differential-leaking.html Posi rear end questions http://classicoldsmobile.com/forums/drivetrain-differentials/17438-posi-rear-end-questions.html Sat, 24 Oct 2009 10:47:50 GMT http://sanantonio.craigslist.org/pts/1435222895.html I have a 70 SX non posi and was wondering if this posi would work with my SX? What... http://sanantonio.craigslist.org/pts/1435222895.html


I have a 70 SX non posi and was wondering if this posi would work with my SX? What should I look for?

Thanks,
Shawn ]]> Drivetrain/Differentials sworthy555 http://classicoldsmobile.com/forums/drivetrain-differentials/17438-posi-rear-end-questions.html