Own a 740 Turbo Wagon, 4 speed w/ J type (I think) overdrive unit.. I've heard that these can be picky about what type of gear oil is used.

...I'm a big fan of Redline synthetics, as I've had great experiences with their products in that past -- so I'd really like to throw some of their stuff in the trans.. just like I said, I've heard that these gearboxes are picky and I've never owned a Volvo before (I am RAPIDLY becoming a fan)--- what stuff should I use?

Also, rear-end. Not limited slip, found that out in the rain the other day when I bought it... :) What type of [Redline] lube should I put in there?

thanks all,
Matt Webb

You don't say what year your car is, but it may well hve a "P" type OD, which is heavier duty than the "J".
I use MTL in my '87 with "P" OD; the shifting is greatly improved, and the OD is fine at 10PSI. Redline "Racing ATF" is type "F", as spec'ed for an M-46, though.
75w90 gaer oil is good for the rear end.
See http://www.redlineoil.com/products.htm.

Since you got the car, I say get the owner's manual!

It'll tell you what variety of fluids and lubricants to use.

You will find out, for example, that your tranmission calls for ATF, Type F, not "gear oil". You can use Redline MTL, and as long as you don't overclock your boost, the OD shouldn't slip. I recommend synthetic Type F, though.
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www.fidalgo.net/~brook4