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Hello All, I’m in the process of overhauling a C5Z06 Getrag 625 (3 RIB 2.43 SP) differential and the 10 each ring gear Bolts Part No.: 89060126 that secure the ring gear to the differential are considered “discard items” per the maintenance manual.
I reached out to several GM parts houses and these Bolts Part No.: 89060126 are on “National Backorder” with NO estimated date of availability.
In trying to find a aftermarket source, I checked with ARP and they do not have any Getrag 625 ring gear bolts listed on their web site.
Hoping that the CF members who did their gear swaps can point me to a source for the ring gear bolts?
If you do have an aftermarket source for these ring gear bolts, please post up.
If originals are not available, and you know the thread pitch and length, why not use the applicable ARP replacement? I have used their bolts for the exact same scenario when rebuilding a BMW diff.
Thanks for the tip on RPM, sent an e-mail to see if they have the bolts
additional bolt info.
Grade 12.9
Hex Size 17mm
Thread Diameter 12mm
Thread Pitch 1.25
Grip Length 25mm Bolt grade 12.9 Grip length Hex size
Last edited by 69; Dec 12, 2017 at 08:49 PM.
Reason: added info
If originals are not available, and you know the thread pitch and length, why not use the applicable ARP replacement? I have used their bolts for the exact same scenario when rebuilding a BMW diff.
Alan from ARP contacted me very quickly but unfortunately (for me) ARP does not make a bolt for this application.
Kudos to Alan Sales & Technical at ARP for the fast response to my Tech
Getrag 625 C5Z06 Differential Overhaul BOLTS NEEDED (RING GEAR)
