Rear end oil

[RonMGTC@aol.com]

Gentlemen (and ladies): What is the collective wisdom of the list regarding which oil to use in a newly rebuilt rear end? Thanks Ron Like I have been saying for the past 4 years, "only 30 more days before it's on the road again."

[DAI]

For a standard TC diff I use Penrite Mild EP-140. DAI --- RonMGTC@aol.com wrote: > Gentlemen (and ladies):

> > What is the collective wisdom of the list regarding > which oil to use in a > newly rebuilt rear end? > > Thanks > > Ron > Like I have been saying for the past 4 years, "only > 30 more days before it's > on the road again."

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[C Sherriff]

What is the collective wisdom of the list regarding which oil to use in a newly rebuilt rear end? ===================================================== A very recent post from Eric Worpe covers this very well "The original oil specified for both the gearbox and backaxle of the Tabc was called High Pressure 140, as in Castrol's Hi Press 140 which contained a low Sulphur additive to prevent the oil film breaking down at the contact points of the gear teeth. Unfortunately the term EP for extreme pressure started to be used for both High Pressure oils ( GL-4 spec. suit- able for gearboxes and spiral bevel type gears) and Extreme Pressure oils ( GL-5 spec. suitable for hypoid type gears). As an additive type oil was originally recommended for the Tabc gearbox and backaxle, Castrol's EP140 which replaces Hi-Press 140 or the Penrite "mild EP" or any other 140 oil to GL-4 spec. should be used. Use of a non-additive oil would not initially show any detrimental effects, but the long term consequences could be serious as the "gears", which are not available as spares, wear and become "noisy". Possibly the one modification that would prolong the life of the Tabc, is also the simplest. Do consider Aralditing a small magnet into the drain plug of the gearbox." Regards Clive

[Tombutlercpa@cs.com]

How about lubrication for the A-30 rear end?

[joecurto@aol.com]

Tom My 1955 Texaco auto Lube chart does not show Austin A30, but does show 8&10 HP 46-47 using 140 EP at 10& 32 degrees above, and 90 EP at above 10 degrees, A16 46-47 using 140 EP above 32 degres and 90 above and below 10 degrees. my A40 book shows 140 EP. I do not know why they have same oil for different heat ranges but that was on the chart, the A40 is out of shop Manual. Joe Curto

[C Sherriff]

Message text written by INTERNET:Tombutlercpa@cs.com

>How about lubrication for the A-30 rear end?

================================================== Tom As your manual will have told you, A30 and A35 have Hypoid rear axles - rather than Spiral Beval -- select your "EP" oil carefully and accordingly Clive