Recent content by john-9

seal surface on axle shaft should be 1.550 inches ,, if the divot is small enough have you tried to fill it with JB Weld and sand it back to size . or take you axle to any bearing shop near you and they will measure the seal surface and may have a speedy sleeve available.

i bought one of these units it checked out fine ,, no burrs to speak of ,, gears all looked good ,,, only issue was the preload on the clutch plates which was 90-100 lbs/ft rotating i upped that to 160 lbs/ft which is in the range i like ,, usually try to get them at 150-200 lbs/ft rotating ...

just to correct a couple things in the long post #22 -- widths on the yokes should be 7260 - 3-1/4 and 7290 3-5/8 -- and PINION DEPTH does NOT change when going to a solid spacer on the 489 case ,,the solid spacer replaces the crush sleeve , you only have to set up the pinion bearing preload...

your coast pattern still looks excellent , and the drive side pattern will move up under load ,, shim changes on a 8-3/4 too much toe ( pattern towards inside of gear ) remove shim -- too much heel ( pattern towards outside of gear ) add shim ,,, all shim changes in increments of .003 to see a...

looks good on the coast side ,, drive side is ok for a used gear ,, what i am having trouble with is , if these gears were run with the .030 shim all those years and look to be in excellent shape you should not have had to make a shim change when you rebuilt it .would still like to see what the...

to do a proper pattern check best to have the differential locked down in a vice or some type of fixture ,, wear a glove and keep pressure on the ring gear as you turn the pinion ,, loosen off the adjusters/spanners again and reset the ring gear side to just 0 backlash ,, rock the ring gear...

snug both bolts down -- yes it will take some force to set the backlash but you have to have preload on those bearings -- been rebuilding differentials since 1975 and have had no issues yet. your pattern with the thicker shim looks very good i would be very tempted to go with it -- but try the...

here are some photos of used gear rebuild patterns --- last photo is a new gear set pattern

what was the reason for the rebuild on your stock center section was it making noise or ?? . if you did a gear change the pinion depth shim will change ,,,, if this is the stock gear set up from the factory DO NOT change the pinion depth shim from the original one , to set the correct...

just so you know -- that is a cone style sure grip -- there are no clutches in that unit -- if the seller told you new clutches were installed ,,, i would be dubious of the new bearings were installed as well.

get questions answered about my restoration projects Location: canada