Re: "BE" axle info
Info reposted from other post:
Also here are a few notes on the looking at a #234 posi:
1) springs - natural color / lefthand wind / 0.120" wire diameter / 75# rating
2) spring plates - narrower and longer than standard plates / round hole for c-clip
* note: early standard posi units also had round holes for c-clips but are too wide for copo unit *
3) axle gears - 16 teeth / tooth root goes all the way to clutch surface / gear OD has pointed tooth tips / the unit usually has 7 teeth visible
* Don't get cofused by GM 2nd design 17 tooth axle gears. They appear very similar when inside the posi. *
* They don't have a flange by the clutches either. *
4) I have found (4) older rebuilt COPO posi units with stock 10-18 & 10-17 tooth spiders sets in them. There will be 3 cup washers behind the smaller pinion gears to get the proper mesh. The case is correct but the guts are wrong.
5) the COPO posi case is cast # EDB 30174 ( same as standard unit) and has different internal machined dimensions to fit the larger gears. All COPO units that I have seen were small window cases.
6) The posi unit assembly date can be stamped on the ring gear flange or on the balancing boss. It will be a letter+number+letter stamp. Ever COPO posi carrier that I have seen has had a "J" code. Take note I have seen several other non COPO units, 3 and 4 series, with the "J" code.
It is not a guaranty that a unit is a #234 carrier, unless it has the correct inside dimensions.
Sorry but I couldn't get the database to cut and paste here.
Does it have to be any specific format?
I'll try to save it as something else and paste it again later.
Thanks again.
Eric
|