Re: [AMC-list] slooow....

[Frank Swygert <farna@xxxxxxx>]

I cut your original message up, just included parts pertaining to my reply.

Better too much grease in the trunnions than too little! I'd inspect them good to make sure they aren't turning in the arms though. The caps on the Classic style trunnion can be pulled off one at a time, cleaned, then reassembled with anti-seize before greasing. Wouldn't hurt to grind a flat on one "side" so grease would spread more evenly across the trunnion, but that's not really necessary. Most of the time the zerk is frozen shut or the trunnion won't take more grease but monkey's put a full couple quirts in anyway, or try, piling grease around it instead or in. Most trunnions in good repair won't take a full stroke of grease, there isn't room inside!

13/43 is 3:31. That was the automatic trans ratio. OD used 4.11 with 4.38 optional. 64-69 Americans used 3.31 (and 199 models even 3.08) with OD, but the heavier Classic used 3.78with OD and the 196 with 4.11 optional. 3.31 was used with a standard three speed. The 3.31 might be a bit steep in OD, making OD useful only on the highway over 60-65 mph.

I wouldn't use the big wrenches on the driveshaft OR slide the rear axle back. With weight on the axle you can take the u-joint apart on the car. That's much less work and time, though a bit cramped. I put the car on four jack stands (or the front wheels on ramps) with the stands under the axle in back so the shaft can be rotated. It's a bit of trouble lying on your back under the car, but less than sliding the axle back. If you loosen the big nut you still have to slide the axle back or dismantle the u-joint for room to get the shaft out. Best to leave the nut alone, has to be tightened to 200-250 ft/lbs (I forget the exact number) and positioned correctly on the pinion shaft.


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Date: Tue, 9 Aug 2011 13:07:01 -0700 (PDT)
From: Joe Fulton<piper_pa20@xxxxxxxxxxx>

In other news, I brought home a one-owner 62 Classic wagon a couple of weeks
ago. I cleaned underneath the vehicle and the trunnions had been so over-greased in the past that there was probably at least a pound of extra grease spread over each trunnion assembly from the spring seat down to the backing plate. I had intended to adjust one front brake which was tight, but I couldn't even access the rubber plug on the adjustment port without removing gross quantities of grease.

The car has overdrive and has a 13/43 ration according to the tag, which I think is about a 3.23. With O/D engaged that old long stroke 195.6 torque will be useful.

The 64 American is still awaiting a transmission transplant which I may start
tonight. Still debating whether to use the big wrenches on the big nut or just
chicken out and move the differential back like the TSM recommends.


--
Frank Swygert
Publisher, "American Motors Cars"
Magazine (AMC)
For all AMC enthusiasts
http://www.amc-mag.com
(free download available!)

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