D4 6U low speed gear group (2 speed reverse)

hi guys its been a while since I have been on here and posted. This past winter I must have had a bearing lock up in my reverser assembly and grenade it all. just finished disassembly and began to take down part numbers but the part numbers i have (few survived all the carnage) don't really match up to any of the 3 parts groups i have for a low speed gear group in a 7u parts book i have. my reverse gear is a 16tx22t with a part number of 6h2595 (book shows that a 16x22 gear should be a 4h6998 do I have wrong parts diagram or is that an updated number) my reverse bracket that holds the gear in the side of the housing is a 1h4062 (based off tooth count book shows bracket should be 4h7003). I need all the spacers, washers, shaft, lock, dowels and bearings for this reverse assembly but none of those part numbers survived to help. and yes also the 16x22 gear and bracket are beyond repair (need it all).  i need 1 gear for the upper shaft 1h4057 (33tx29t) and i also need 1 lower shaft gear the 21t but my gear is stamped with what looks like 6h2598 (book shows that should be 1h405😎 any help in figuring out which gear group i have and proper parts break down would be appreciated and any leads to parts would also be great as this just became a shop ornament. my actual machine is 6U8483SP

6H2595 is part of Gear Grp-Low Speed-2nd rev, 1H4054 or 3H6324, which are part of 4H8421. 4H6998 is part of Gear Grp-Low Speed-2nd rev, 4H8421, all these gear groups cross to Attachment Arrangement 2H6620 and 2H6625.

Yes those are all the parts groups I am looking at in my book. 6h2595 is not actually listed in any of those parts groups so is that a replacement of one of the gears and if so which one because there are two different tooth counts for the two speed reverse gear. If you go by tooth count we should be looking at part group 4h8421, but the part number on my bracket also does not match for that group either. Nor does the 21tooth gear on the lower shaft match part number so what I guess I'm looking to know is that my numbers are new numbers that replaced the ones in the book? Need to know for sure before ordering the wrong stuff

My parts manual is for 7u1 to 27569 and the parts you are looking are't inside.SORRY