A word of advice, don't put low temp grease in your jackshaft/driveshaft bearings. These rotate at high speeds, and get hot. Then low temp doesn't help too much. Multi-purpose grease on these bearings, or Performance grease. Low temp in suspension parts only.
If the bearings are sealed, you can grease them by using a needle attatchment on your grease gun. Then you slide the needle by the rubber seal on the bearing (not thru the seal) Also be careful not to peel the seal off.
On the Jag, I think all you have to do is take the secondary clutch off (the back one) then you can access the bearings.
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