Have you got the machine stripped down yet?
You may wish to consider this, very often these Frigidaire models, which in my opinion have the worst design of spider in the business, require renewal of the spider. As this is not available separately you have to purchase the spin tub assembly, item 16, on page 7, of the parts list you referenced in your first post.
Now in Canada, not the US, Sears have a part number 970.134453200 called a Tub Kit. These are only available through Sears Parts Canada and comprise the spin tub (item 16) the front and rear halves of the outer shell (items 13 & 22), the 'O' ring joint between the 2 sections of the outer tub (item 21) and the pulley (item 26) and the pulley securing hardware (items 27, 28 & 29). The last time I checked this tub kit was cheaper than just the spin tub and it comes assembled. You may wish to check with Sears parts Canada?
The best way of obtaining one of these tub kits is to call a Sears Parts warehouse near you and find out if they have one in stock and if they do go and collect it and pay cash. Should you be like me and live a long way from a parts warehouse you may order it but be prepared for delays in delivery and untruths as to its location on its trip to you. Additionally Sears Canada used to bill your credit card on receipt of the order, regardless of whether the item was available or not, this is against the policies of both Visa and Mastercard, you should only be billed once the item is shipped unless you have specifically agreed otherwise. Should this happen to you advise your credit card issuer (Acquirer as they are called). I am told that Sears |Canada has stopped the practice but it is still done by Sears USA. Once Sears (Canada or USA) have your money it is the devil's own job to get a refund from them, again let your credit card acquirer know as Visa and Mastecard have limits on the time between when a transaction (debit or credit) takes place and when it is posted to the clients account.
Frigidaire is totally owned by Electrolux and there is a Shop Manual put out by them that covers this range of washers at:
This may be of some help to you.
I have fitted a couple of these tub kits with no problems and subsequent happy friends and relatives, I did not know about them when I did my own!
The only problem was actually getting them, the Sears reps I spoke to in the process are either grossly incompetent and/or are working with a system that does not work.
Good Luck
Biguggy