Posted by John S [172.70.34.55] on Saturday, March 27, 2021 at 21:36:06 :
In Reply to: Re: 57-68 WM300 NP420 posted by Vaughn [172.69.22.149] on Saturday, March 27, 2021 at 10:36:07 :
i checked the casting numbers on the transmissions that i have both are C93511. Wow! I never looked at the numbers until today. I know the the bolt patterns are different. Interesting that the casting numbers are the same. Wonder where and what the casting identifier or modifier number is? Is that the 88950 number? I put NP 420 parts in the transmission in my truck. The internal parts are the same.
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