65 12-Bolt Pinion Seal - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**LostMy65** · 05-24-2021, 11:59 PM

I've searched. And I know that some may say that all truck 12-bolts should take the same seal, but I see there have been issues with getting the exact correct part. So, I'm posting specifically for those of us who recently bought a new pinion seal for their 64-66 12-bolt. What part number worked for you?

**LostMy65** · 05-25-2021, 01:16 PM

I know I'm probably narrowing the help I might get with this question, but seriously, I've read that some end up with the wrong one and have do it again. I'd like to get it right the first time.

**cwcarpenter98** · 05-25-2021, 04:53 PM

I replaced mine last summer, haven't had a leak since. Unfortunately, I don't remember the part number and I'm not sure where the receipt went.

****Edit to add:****

Apparently, my memory from last year's install was a little fuzzy

I thought I had ordered it from Rockauto, but I didn't, so I just went back to check my Amazon history and what do ya know, there it is.

I used this seal and have had great success. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
My 12 bolt is from a 65-70 truck, but I never looked for the stampings on the tube to figure out exactly which year.

**LostMy65** · 05-25-2021, 08:26 PM

Perfect! That's exactly what I needed.

**LostMy65** · 05-25-2021, 08:59 PM

Ordered.
I'll post back for how it goes.

**cwcarpenter98** · 05-26-2021, 12:20 AM

I'm glad I could help! I hope it works out for you as well as it has for me

05-24-2021, 11:59 PM	#1
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,468	65 12-Bolt Pinion Seal I've searched. And I know that some may say that all truck 12-bolts should take the same seal, but I see there have been issues with getting the exact correct part. So, I'm posting specifically for those of us who recently bought a new pinion seal for their 64-66 12-bolt. What part number worked for you? __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

05-25-2021, 01:16 PM	#2
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,468	Re: 65 12-Bolt Pinion Seal I know I'm probably narrowing the help I might get with this question, but seriously, I've read that some end up with the wrong one and have do it again. I'd like to get it right the first time. __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

05-25-2021, 04:53 PM	#3
cwcarpenter98 Senior Member Join Date: Jan 2018 Location: Hickory Flat, GA Posts: 4,421	Re: 65 12-Bolt Pinion Seal I replaced mine last summer, haven't had a leak since. Unfortunately, I don't remember the part number and I'm not sure where the receipt went. **Edit to add:** Apparently, my memory from last year's install was a little fuzzy I thought I had ordered it from Rockauto, but I didn't, so I just went back to check my Amazon history and what do ya know, there it is. I used this seal and have had great success. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 My 12 bolt is from a 65-70 truck, but I never looked for the stampings on the tube to figure out exactly which year. __________________ Christian Carpenter 1963 C10 - Frankentruck 283, 3 speed with overdrive Overdrive wiring here 1963-ish truck bed trailer - Half-Wit 1981 C10 - Penny 305, th350 1995 Dodge Dakota Sport "I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson Last edited by cwcarpenter98; 05-25-2021 at 04:59 PM.

05-25-2021, 08:26 PM	#4
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,468	Re: 65 12-Bolt Pinion Seal Perfect! That's exactly what I needed. __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

05-25-2021, 08:59 PM	#5
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,468	Re: 65 12-Bolt Pinion Seal Ordered. I'll post back for how it goes. __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

05-26-2021, 12:20 AM	#6
cwcarpenter98 Senior Member Join Date: Jan 2018 Location: Hickory Flat, GA Posts: 4,421	Re: 65 12-Bolt Pinion Seal I'm glad I could help! I hope it works out for you as well as it has for me __________________ Christian Carpenter 1963 C10 - Frankentruck 283, 3 speed with overdrive Overdrive wiring here 1963-ish truck bed trailer - Half-Wit 1981 C10 - Penny 305, th350 1995 Dodge Dakota Sport "I'll put it simple: if you're going hard enough left, you'll find yourself turning right." - Doc Hudson



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