1967 4 speed manual trans to bell housing bolts: Lock washers? Or no lock washers?

[Brian E.]

do NOT use lock washersDoes anyone have a truly untouched 1967 Corvette with a 4 speed transmission that can provide evidence either way?

AIM.jpg

[Gary B.]

[Brian E.]

Re: 1967 4 speed manual trans to bell housing bolts: Lock washers? Or no lock washers

My unrestored ‘66 L79 had lock washers on those bolts when I disassembled it for the first time since GM put it together.

Good to know. Thanks.

Keep the comments coming guys. The more info I get, the better. Thanks in advance.

[Jim D.]

Re: 1967 4 speed manual trans to bell housing bolts: Lock washers? Or no lock washers

Both my 65's, BB and SB, had the lock washers.

[Brian E.]

Re: 1967 4 speed manual trans to bell housing bolts: Lock washers? Or no lock washers

Let’s just pretend for a moment the vendor is correct in his statement/position/claim that lock washers were not used… Is there any possible harm in using a lock washer under the head of these bolts?

[Gary B.]

https://www.forums.ncrs.org/showthre...726#post880726

[Brian E.]

Re: 1967 4 speed manual trans to bell housing bolts: Lock washers? Or no lock washers

No, there is no significant downside to using lock washers. Other than some witness marks where the leading edge of the lock washer coil comes in contact with the bell housing surface.

Ok, thanks for the definitive answer. I appreciate that.

Here’s another posting for a C2 that reports having lock washers: https://www.forums.ncrs.org/showthre...726#post880726

I read through that thread. Thanks for that too.

I can guess who your well-known hardware vendor is, and all I can say is that even well-respected authorities can be wrong sometimes.

Agreed.

If you’re like me, I assume you know a few people personably who have C2 Corvettes. Have you asked them to look at their cars to look for lock washers at that location? If so, has anyone reported not having lock washers?

So far, NObody has reported the lack of lock washers. I'm glad I asked the question.

[Gary B.]

[Stephen L.]

Re: 1967 4 speed manual trans to bell housing bolts: Lock washers? Or no lock washers

My 67 also has lockwashers, just like the AIM.

[Brian E.]

Re: 1967 4 speed manual trans to bell housing bolts: Lock washers? Or no lock washers

Brian,

What’s the total survey tally so far? Counting my car, Jim’s two cars, and Grant’s, that’s 4 with lock washers. Do you know of others?

Gary

Well, right now it's like a lot to zero. I don't know if anyone has chimed in reporting that their car does NOT have a washer of some kind under the heads of these bolts.

Here's my situation... because I'm a greenhorn I tend to progress slowly and carefully. The only classic Corvette I currently own is also the only classic car I have ever owned. I have purchased a lot of hardware from this vendor and trust his expertise (everyone is an expert compared to me). My friend / vendor knows a lot about bolts and related hardware, but despite my trust in his experience, it just didn't make sense to me and this is why I posted the question. Consider the fact that I posted the question as my due diligence. My friend / vendor is a human and is therefore capable of being wrong. I'm not saying that he's wrong and I'm not saying he's correct, but it's obvious that a LOT of folks don't agree with his position. Also, there is photographic evidence (above) in books printed a long time ago that some form of washer was obviously used under the heads.

I'm glad I posted the question, and I'm glad it has become sooo clear from an overwhelming majority that a lock washer was used under the heads of these bolts. Thanks to all who contributed to this thread. I've said it before (probably not enough)... I appreciate the depth of knowledge a newbie like me can plug into on this forum.

[Joe L.]

Re: 1967 4 speed manual trans to bell housing bolts: Lock washers? Or no lock washers

Well, right now it's like a lot to zero. I don't know if anyone has chimed in reporting that their car does NOT have a washer of some kind under the heads of these bolts.

Here's my situation... because I'm a greenhorn I tend to progress slowly and carefully. The only classic Corvette I currently own is also the only classic car I have ever owned. I have purchased a lot of hardware from this vendor and trust his expertise (everyone is an expert compared to me). My friend / vendor knows a lot about bolts and related hardware, but despite my trust in his experience, it just didn't make sense to me and this is why I posted the question. Consider the fact that I posted the question as my due diligence. My friend / vendor is a human and is therefore capable of being wrong. I'm not saying that he's wrong and I'm not saying he's correct, but it's obvious that a LOT of folks don't agree with his position. Also, there is photographic evidence (above) in books printed a long time ago that some form of washer was obviously used under the heads.

I'm glad I posted the question, and I'm glad it has become sooo clear from an overwhelming majority that a lock washer was used under the heads of these bolts. Thanks to all who contributed to this thread. I've said it before (probably not enough)... I appreciate the depth of knowledge a newbie like me can plug into on this forum.

Brian------


My original owner 1969 small block had lockwashers from new. No doubt about that, at all. No one ever had the transmission out of that car except me and it had and still has lockwashers on these bolts.

[Gary B.]

[Brian E.]

Re: 1967 4 speed manual trans to bell housing bolts: Lock washers? Or no lock washers

Brian, I wonder if there hasn’t been some miscommunication between you and the “well-known hardware vendor” you allude to. Could he have been talking about the bolts that attach the bell housing to the block?

Yah, that would be good if there was a misunderstanding and/or a miscommunication, but I'm confident that neither is the case.

[Gary B.]

Re: 1967 4 speed manual trans to bell housing bolts: Lock washers? Or no lock washers

I give up them. I see no other way to explain the all but certain inaccuracy.

Gary

[Chris H.]