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post #1 of (permalink) Old 01-09-2001, 10:04 AM Thread Starter
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Gear drive replacement for timing chain

I may be building a truck soon and I'm considering putting in a gear drive when I build it. Does anyone have one? What brand? Where did you buy it? How much was it? What engine is it in? How long have you had it? Were there any problems installing it? Is it wearing out? Is it noisy? Did it replace a stock chain, or a double roller? Can you tell a difference? Thanks

83 Custom w/95 4.9L EFI, 78 NP435, 83 NP208, 83 D44IFS 3.07, 87 Ford 8.8ABS 3.08, Michelin LTX AT 31x10.50R15
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post #2 of (permalink) Old 01-09-2001, 01:14 PM
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Re: Gear drive replacement for timing chain

I installed one in my buddy's 350. I personally think it sounds like crap (gear whine). As far as being better, I couldn't tell you. He only drives it in the summer, and it has less than 5,000 miles on the rebuild. The gear drive just replaced the stock timing chain the engine came with. I can't for the life of me remember the brand. It came from Summit.

post #3 of (permalink) Old 01-09-2001, 01:36 PM
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Re: Gear drive replacement for timing chain

I put a gear drive on my mustang a while back. Didn't notice any difference, just sounded like I had a supercharger. mine was ford motorsport.

1989 bronco...100 and something thousand miles...351...C6
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post #4 of (permalink) Old 01-09-2001, 05:12 PM
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Re: Gear drive replacement for timing chain

I installed several while I was still wrenching, primarily in high-rpm race engines. The last one I did was for a friend who now has 3 years and about 20,000 on the engine. This was in a 8,000 rpm long-rod solid-roller 302, and it was a Pete Jackson "quiet" model (though it wasn't exactly quiet). I don't remember what my friend paid for it, but he said he bought it from Summit Racing (I think they're around $125). We primarily used gear drives in high-rpm big-Hp engines for their more accurate cam timing and strength, on lower rpm engines (below 7,000) we usually just used a Cloyes 'true-roller' double-roller chain.


post #5 of (permalink) Old 01-10-2001, 09:14 AM
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Re: Gear drive replacement for timing chain

Pete Jackson! That's the name I couldn't remember... To me, double roller is the way to go.

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