|
|
|
|
Joined: Apr 2009
Posts: 140
Shade Tree Mechanic
|
OP
Shade Tree Mechanic
Joined: Apr 2009
Posts: 140 |
On page 12 of the December 2020 G&D it talked about 4 speed transmission oil, of course I was using the wrong one.
What should I be using for oil in the rear end? The rear end has 336 gears and is a Posi Traction.
|
|
|
|
Willwood Engineering
Wilwood Engineering designs and manufactures high-performance disc brake systems.
Wilwood Engineering, Inc. - 4700 Calle Bolero - Camarillo, CA 93012 - (805) 388-1188
|
|
|
|
|
Joined: Nov 2003
Posts: 2,576 Likes: 2
ChatMaster - 2,000
|
|
ChatMaster - 2,000
Joined: Nov 2003
Posts: 2,576 Likes: 2 |
i use 90 wt gear oil and 8 oz of poi traction lubricant., my favorite being Quell which is becoming more difficult to obtain. it contains oils from a spermaceti whale. mike mccagh
|
|
|
|
|
Joined: Dec 2007
Posts: 4,024 Likes: 99
ChatMaster - 4,000
|
|
ChatMaster - 4,000
Joined: Dec 2007
Posts: 4,024 Likes: 99 |
You do want a GL-5 oil in the rear axle. The ring and pinion gear are a hypoid gear set.
Rusty
VCCA #44680
|
|
|
|
|
Joined: Jun 2007
Posts: 1,894
ChatMaster - 1,500
|
|
ChatMaster - 1,500
Joined: Jun 2007
Posts: 1,894 |
You have many options of high end multi-grade that is GL-5 like Rusty said that are superior to what was available in 1966. There are 75w90, 75w110, 75w140 and various combinations around these depending on brand variations.They are all a bit thinner acting when cold but a bit thicker when hot. If it's used for short runs in cooler weather you can go with the lighter fluids. If it gets long runs on hot days or tends to leak, you can go thicker.
You really can't go wrong with any modern name brand oil BUT you still MUST use the GM additive and if Mike above says 8oz, then use the 8oz's.
1938 Canadian Pontiac Business Coupe (aka a 1938 Chevy Coupe with Pontiac shaped front sheet metal - almost all Chevy!)
1975 4-speed L82 Vette
|
|
|
|
|
|
|
