7.5 rear end 28 spline upgrades with new parts?

Status
Not open for further replies.

565bbchevy

Geezer
Aug 8, 2011
9,614
12,683
113
Michigan
BTW- Moser's stock photo on their website does not show the dual drilled(tapped) pattern.
Yeah I have seen pictures with the dual pattern but never anything saying what the 2nd pattern was only the 1/2" stud listed.
 

ck80

Moderator
Moderator
Supporting Member
Feb 18, 2014
5,743
9,121
113
It wasn't that long ago you lamented not knowing about name changes on the board....

Since the rear end needs replacing anyways, perhaps the regal prefers a 632, and then the Monte could be described as the "mild 565"...
 
  • Haha
  • Like
Reactions: 1 users

carnutjw

G-Body Guru
Sep 17, 2017
621
1,465
93
Part #: A102810
Quantity: 2 Axles
Mfg: GM
Model: Cutlass, El Camino, Grand Prix, Monte Carlo, Regal
Year: 1982-1987
Rear End: 10-Bolt 7.5" & 7.625"
Spline Count: 28
Length: 28 7/16" long,
Bolt Pattern(s): (2) 5 x 4 3/4
TAP 1/2 X 20 & .484 HOLE
A= 2.771
 
  • Like
Reactions: 1 users

565bbchevy

Geezer
Aug 8, 2011
9,614
12,683
113
Michigan
It wasn't that long ago you lamented not knowing about name changes on the board....

Since the rear end needs replacing anyways, perhaps the regal prefers a 632, and then the Monte could be described as the "mild 565"...
You have no idea how hard it was for me to not put my other 565 BBC in the Regal, but I have no regrets and it's a fun summer daily driver that gets decent mileage, has AC and overdrive and even looks fast, besides I know the actual final cost of building something to handle the power.
 
  • Like
Reactions: 1 user

xylorex

Master Mechanic
Aug 2, 2018
305
395
63
New Orleans, LA
On my 7.5" build I went with

moser A102801 axles
detroit truetrac 912A317 carrier
Richmond ring/pinion set 49-0046-1
Richmond mega-kit 83-1016-M
LubeLocker LLR-G750
Moser cover 7105
ARP studs, couldn't find the part number in my email
 
  • Like
Reactions: 1 users

Malibu Frank

Not-quite-so-new-guy
Feb 20, 2021
16
21
3
Check out Quickperformance.com, I found they have the best prices. I just bought a Yukon Posi carrier 342 ring and pinion and the complete install kit for $550.00 I bought my 28spline Moser axles from Jegs.
 
  • Like
Reactions: 1 users

84dragcutlass

Royal Smart Person
Supporting Member
Aug 20, 2009
1,189
1,507
113
North Vernon IN
I was looking into this as well for my Cutlass, but was thinking of keeping my stock 26 spline axles. Quick performance seems to have the best price on the whole kit. Might upgrade to 28 spline axles, the temporary engine is a 383 stroker so im curious if on the street if i would break the 26 spline vs the 28. Any thoughts?
 

565bbchevy

Geezer
Aug 8, 2011
9,614
12,683
113
Michigan
I was looking into this as well for my Cutlass, but was thinking of keeping my stock 26 spline axles. Quick performance seems to have the best price on the whole kit. Might upgrade to 28 spline axles, the temporary engine is a 383 stroker so im curious if on the street if i would break the 26 spline vs the 28. Any thoughts?
My thinking was a the carrier and gear change are the same price for 26 or 28 spline so why not just spend the extra $200-300 and get new 28 spline axles and make it a an actual upgrade plus there are less expensive options also for quality 28 spline axles.
 
  • Agree
Reactions: 1 user

Malibu Frank

Not-quite-so-new-guy
Feb 20, 2021
16
21
3
28 spline axles would definitely handle more power, the 26 spline are too weak!
 
  • Agree
Reactions: 1 user
Status
Not open for further replies.

GBodyForum is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Amazon, the Amazon logo, AmazonSupply, and the AmazonSupply logo are trademarks of Amazon.com, Inc. or its affiliates.

Please support GBodyForum Sponsors

Classic Truck Consoles Dixie Restoration Depot UMI Performance

Contact [email protected] for info on becoming a sponsor