Yukon big bolt pattern axles for 8 3/4 a-body rear

[Danimal]

I have a set of Yukon BBP axles for my 8 3/4 a-body rear end that's under my dart.  I want to install them while I swap to disk brakes (TSM kit).  I traded for them along with some Green axle bearings, not yet installed.

The question I have is whether the Yukon's require the green axle bearings?  Or, do I have the choice of going with the stock-style tapered bearings while still using the BBP Yukon axles?

Thoughts?

[74duster383]

If I remember correctly the Yukon axles take the green bearings.  The tappered won't work.  But, send cass an email at doctordiff@centurytel.net
just to be sure. 
He sells the yukon axles.

[d55dave]

I have Yukons in mine. I first installed them with Green bearings, as recomended. A week later I snapped an axle du to isufficient engagement in the differential (two piece side gears, a whole other story / topic).

Randys ring and pinion replaced the axles at no cost and said that they sold me the wrong axles for my application. The so called "A body length" axles are actually shorter by, if I remember, 3/4 to 1/2 inch than original A body axles. This is whay they say "must use green bearings", as they are too short to contact the thrust block and set up end play.

They sent me Yukon "cut to fit" axles. virtually the same as before except the splined end is about 3" longer. Basically you cut these to fit your differential width.

So to answer your question, if you have what Yukon calls "A body" axles you have to use Green bearing as the axles are too short to contact the thrust plug in the center of the diffferential to set bearing play. DO NOT us old style sure grips with two piece side gears with these axles, you will snap the inboard 3/8" off one of them and toast your sure grip clutches.

If you purchased the "cut to fit" axles, you can use tapered roller bearings (as I did the second time around) and cut the axles to the correct length.

My 2 cents based on personal experience

The Yukons have held up great to hard street and occasional track use since I broke the first one.

David