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Old January 23rd, 2023, 06:36 PM
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Join Date: Jan 2013
Location: Arab Alabama
Truck: 60 1001 Wideside Custom BBW, 62 K1001 Wideside BBW and 1966 1001 Wideside BBW w/ Sport Trim option
Posts: 688
Rep Power: 254
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Smile Re: Swapping 4:10 Dana 60 gears to 3:54's

Quote:
Originally Posted by gmcjuniorvan View Post
I found this.
P/N 2448081 is for the GMC Dana 60-35 Ratio 3.54 1962-65. My book only goes to 65. The number was replace with 3940104 gear Assy. (Dana 24813x) and 3940103 Yoke (Dana 24813x) If your case number is 30357 (4.10 and down) it will fit.

Dana application chart 24813x
https://danaproparts.com/i-30497936-...wsm-prod-tab-1

Dana 24813-5x includes the bolts and pinion nut.

Summit
https://www.summitracing.com/parts/sdh-24813x



NOS 3940104
https://www.oldsobsolete.com/product...et-gm-3940104/
Thank you Sir! I will be picking up one of these choices very soon
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My 60-66 GMC Projects:

1960 1001 Custom Cab short wideside BBW, 305A V6, factory PB, Hood Jet, Radio and Hydramatic.

1962 K1000 4x4 short wideside, BBW, 305D w/ SM420, PTO Winch

1966 1001 Custom Cab short wideside, w/ super rare Sport Trim option interior (bucket seats)
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