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Author Topic: ~~Gear Set~~~  (Read 3051 times)

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Offline '78 LadyBird

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~~Gear Set~~~
« on: March 15, 2010, 09:00:26 AM »
Can anyone recommend a good place to buy gear sets for my car?

Does Brett/Hitman sell them?

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Heidi

Offline brian c

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Re: ~~Gear Set~~~
« Reply #1 on: March 15, 2010, 09:05:12 AM »
Jegs, Summit Racing, etc.

8.5", 10 bolt rear. Same as a chevy camaro of same year.

What are your goals? Sometimes a set of gears is required to keep the engine in its power band.

Personally, I'm running a set of 3.42:1 gears as I do plan on putting in a built 200R4 when I finally get some funds to get the tranny built to survive behind a 469. As it is now though, I'm paying for it in lack of gas mileage :( But it'll move off the line like there's no tomorrow! ;D
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1978 Y88, '70 455 HO block bored 0.060, TH350, 3.42:1 gears...Oct '08 Fbodywarehouse Calendar - Woot!
1980 Firebird - no engine/tranny... to be pacecar clone

Offline '78 LadyBird

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Re: ~~Gear Set~~~
« Reply #2 on: March 15, 2010, 09:09:06 AM »
Um, don't really know Brian.  I will call you later on to talk with Frank.  But we are open to ANY suggestions!!
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Proud owner of
1978 Silver TA WS6/W72
1984 Firebird S/E
2000 Firehawk, #696
1954 Ford Skyliner

New Pictures added...
LINK TO OUR GALLERY
http://www.78ta.com/gallery2/main.php/v/See+Ya/

Heidi

Offline 4speed76

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Re: ~~Gear Set~~~
« Reply #3 on: March 15, 2010, 09:59:04 AM »
I would go with a 3.73:1 personally, it will give you a good launch off the line, and decent on the hwy.  JMO
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1976 T/A project
2009 Honda CRV
2001 Honda Civic

Offline brian c

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Re: ~~Gear Set~~~
« Reply #4 on: March 15, 2010, 10:08:59 AM »
With a TH350? She'll be burning through gas like there's no tomorrow. Sure it'll be great off the line but the upper end will really suffer. And highway mileage - simply forget about it.

Depending on the cam and other components I'd say either 3.08:1 or 3.23:1 at most.

**This is going off Heidi's statement that she wants to go on the Bandit run where you'll need decent mpg's to keep up with the rest of the pack.
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1978 Y88, '70 455 HO block bored 0.060, TH350, 3.42:1 gears...Oct '08 Fbodywarehouse Calendar - Woot!
1980 Firebird - no engine/tranny... to be pacecar clone

Offline brian c

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Re: ~~Gear Set~~~
« Reply #5 on: March 15, 2010, 10:10:38 AM »
Whatever you decide Heidi, you'll need to change the speedo gears inside the tranny to compensate for the new rear end ratio otherwise your speedometer will be off - could be by a considerable amount depending on the change made.
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1978 Y88, '70 455 HO block bored 0.060, TH350, 3.42:1 gears...Oct '08 Fbodywarehouse Calendar - Woot!
1980 Firebird - no engine/tranny... to be pacecar clone

Offline LOMILETA

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Re: ~~Gear Set~~~
« Reply #6 on: March 15, 2010, 10:17:31 AM »
What are the gears in the car now?
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1978 TA-462 ci Buick (just sold)
1980 Turbo Formula
1995 Grand Prix
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Offline '78 LadyBird

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Re: ~~Gear Set~~~
« Reply #7 on: March 15, 2010, 12:43:35 PM »
Quote from: LOMILETA on March 15, 2010, 10:17:31 AM
What are the gears in the car now?


Not really sure.  I will have to ask Frank on that one.  I know that when traveling about 65mph, the rpm's are high.  That's all I can tell you at the moment. 

And yes, we are trying to get it back to stock as much as possible.
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Proud owner of
1978 Silver TA WS6/W72
1984 Firebird S/E
2000 Firehawk, #696
1954 Ford Skyliner

New Pictures added...
LINK TO OUR GALLERY
http://www.78ta.com/gallery2/main.php/v/See+Ya/

Heidi

Offline brian c

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Re: ~~Gear Set~~~
« Reply #8 on: March 15, 2010, 01:03:21 PM »
With 3.42:1 gears I'm turning about 2800rpm at 60 IF I recall correctly. That's with a stock tire - 225/70R15.

If that helps any in determining your rear end ratio.
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1978 Y88, '70 455 HO block bored 0.060, TH350, 3.42:1 gears...Oct '08 Fbodywarehouse Calendar - Woot!
1980 Firebird - no engine/tranny... to be pacecar clone

Offline Rick

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Re: ~~Gear Set~~~
« Reply #9 on: March 15, 2010, 04:48:55 PM »
Quote from: '78 LadyBird on March 15, 2010, 09:00:26 AM
Can anyone recommend a good place to buy gear sets for my car?

What's wrong with the set that's in it? ??? ??? ???
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Offline lfdsteve

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Re: ~~Gear Set~~~
« Reply #10 on: March 15, 2010, 05:53:33 PM »
I just pulled a set of 308s and replaced them with 342s. THe 308s are basicaly perfect if your interested drop me a pm an we'll deal

Steve
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Offline Rick

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Re: ~~Gear Set~~~
« Reply #11 on: March 15, 2010, 07:00:25 PM »
Quote from: Rick on March 15, 2010, 04:48:55 PM
Quote from: '78 LadyBird on March 15, 2010, 09:00:26 AM
Can anyone recommend a good place to buy gear sets for my car?

What's wrong with the set that's in it? ??? ??? ???

Never mind -- I just saw your other thread.  It'd be interesting to know what they really are not, though.
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Offline '78 LadyBird

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Re: ~~Gear Set~~~
« Reply #12 on: March 17, 2010, 06:16:07 AM »
LOL Rick, yeah, I am getting notorious for posting information on one post and the asking somewhere else. 
I confuse myself here at times! lol
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Proud owner of
1978 Silver TA WS6/W72
1984 Firebird S/E
2000 Firehawk, #696
1954 Ford Skyliner

New Pictures added...
LINK TO OUR GALLERY
http://www.78ta.com/gallery2/main.php/v/See+Ya/

Heidi

Offline RainMan

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Re: ~~Gear Set~~~
« Reply #13 on: March 17, 2010, 05:45:43 PM »
I had a 3.73  in my 77 Z28 and it was hard on gas . Was reving around 3000 rpm at higway speeds,yikes!
I think a 3.08 is about what you would want if you have to drive on the freeway . If you never  leave the city a 3.73 is great for performance.
I forgot your gears were that low Brian ,and I can see why you want a 4 speed overdrive ,that would be awesome . I couldn't imagine a torque monster 455 like yours on the highway with those gears
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Offline SoonerTA

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Re: ~~Gear Set~~~
« Reply #14 on: March 17, 2010, 09:47:06 PM »
I have the 2.56 Posi gear behind my car.  Talk about a highway gear.  Would the 3.08 make a huge difference?
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