1970 Chevelle Legend700 5 Speed Install Info - Page 2 - Chevelle Tech
Transmission & Driveline Transmissions and Differentials

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post #16 of 27 (permalink) Old Dec 17th, 14, 11:49 AM Thread Starter
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Jody
 
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Re: 1970 Chevelle Legend700 5 Speed Install Info

PLEASE NOTE: A precision bellhousing alignment needs to be done for all manual transmission installations, not just the Legend700 unit.

I hear this a lot and read about guys stating, "I have a Muncie and the bellhousing alignment doesn't need to be done". Hard facts, a pilot bushing doesn't know or care what transmission is behind it. If your bellhousing alignment is out of spec, it will prematurely wear out the pilot bushing. Most manual transmission shifting problems are related to bellhousing mis-alignment. Other issues; clutch fork geometry, bad clutch releasing, and or a clutch adjustment.

Maybe you blueprinted your original engine for your musclecar. Guess what, your engine builder line bored the crankshaft main bearing caps. Line-boring the engine crankshaft bore will change the crankshaft location and put your bellhousing out of alignment.

Here is a bellhousing alignment analogy; you can mount the best scope on the best rifle, but you need to sight in the scope to hit the bullseye. Change out the scope to another gun and you need to sight in the scope again.

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post #17 of 27 (permalink) Old Dec 17th, 14, 12:31 PM
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Re: 1970 Chevelle Legend700 5 Speed Install Info

Good information Jody.

Thanks for all your help and for all you do to support our hobby.

Dale
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post #18 of 27 (permalink) Old Dec 19th, 14, 12:46 PM
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Thumbs up Re: 1970 Chevelle Legend700 5 Speed Install Info

Quote:
Originally Posted by Dale H View Post
Good information Jody.

Thanks for all your help and for all you do to support our hobby.

Dale
I have to agree with Dale 1000%.

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post #19 of 27 (permalink) Old Dec 26th, 14, 12:46 PM Thread Starter
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Re: 1970 Chevelle Legend700 5 Speed Install Info

Dale and Phil, THANKS for the kind words.

On this ZZ502/502 I used a precision QuickTime bellhousing! The bellhousing was out .005" on my initial parallel check.

I added a .005" shim to the two upper bolts with no shims on the two bottom bolts. This shim placement allowed me to get the bellhousing within .0005" on the parallel.

The last step of the bellhousing parallel alignment procedure; what shims are needed at the two middle bolts? The condition that now exists at the two bellhousing middle bolts is called a "soft foot".

How to eliminated the "soft foot"; torque tighten the two top bolts and two bottom bolts; using a feeler guage, measure the gap at the middle bolts which was .002"; in my case I added another .001".

My shims used to do my parallel alignment; .005" shims on the two top bolts; .003" on the two middle bolts; and no shims on the two bottom bolts.

Always recheck the parallel alignment when adding or subtracting shims to verify your actions.
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post #20 of 27 (permalink) Old Dec 26th, 14, 1:40 PM
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Ryan
 
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Re: 1970 Chevelle Legend700 5 Speed Install Info

Great explanation!!!

Just like aligning an electric motor to a pump.

Ryan
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post #21 of 27 (permalink) Old Jan 9th, 15, 12:33 PM Thread Starter
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Re: 1970 Chevelle Legend700 5 Speed Install Info

Quote:
Originally Posted by Ryan 1969 Chevelle SS 396 View Post
Great explanation!!!

Just like aligning an electric motor to a pump.

Ryan
Same principle, if you don't align that motor to the pump, you will have premature wear on the coupling.

Jody Haag
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post #22 of 27 (permalink) Old Jan 15th, 15, 11:41 AM Thread Starter
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Re: 1970 Chevelle Legend700 5 Speed Install Info

I've been a little under the weather and slow getting pictures posted, but here is the Legend700 mated behind the ZZ502/502.

The transmission driveline angle has already been determined using the original crossmember. The Legend700 looks great in the "black calico coating".

Those are Dam Lemon's Headers and they are sweet!
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Jody Haag
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post #23 of 27 (permalink) Old Jan 15th, 15, 11:57 AM
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Re: 1970 Chevelle Legend700 5 Speed Install Info

Looks great Jody. Any idea what your front operating angle will be?

Andrew

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post #24 of 27 (permalink) Old Jan 15th, 15, 2:54 PM Thread Starter
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Re: 1970 Chevelle Legend700 5 Speed Install Info

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Originally Posted by andrewb70 View Post
Looks great Jody. Any idea what your front operating angle will be?

Andrew
Thanks stopping by Andrew......

The above pictures are about 1* down. We did this to see where the Legend700 would sit within the tunnel when we lowered the '70 Chevelle body onto the frame. There is a ton of room to go past 0* with the Legend. I like the tunnel clearance I see with the body sitting on the frame.

We will do a proper operating angle check once the entire car is back together and report back.

Jody Haag
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post #25 of 27 (permalink) Old Jun 13th, 15, 7:25 AM
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Re: 1970 Chevelle Legend700 5 Speed Install Info

I was wondering if you have installed your front and intermediate parking brake cables yet? If so I would like to know what you used . Currently I have the parking brake cables for the manual/turbo 350 setup from inline tube. Does not appear these will work since the Legend tranny is longer than the Muncie.

Thanks in advance.

Bart Pinson

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post #26 of 27 (permalink) Old Jun 14th, 15, 9:27 AM Thread Starter
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Re: 1970 Chevelle Legend700 5 Speed Install Info

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Originally Posted by Bart42 View Post
I was wondering if you have installed your front and intermediate parking brake cables yet? If so I would like to know what you used . Currently I have the parking brake cables for the manual/turbo 350 setup from inline tube. Does not appear these will work since the Legend tranny is longer than the Muncie.

Thanks in advance.

Bart Pinson
You can drill new holes into the crossmember and floor brace to spread the small cable hooks outward, this will eliminate and take up your cable slack.

Jody Haag
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post #27 of 27 (permalink) Old Jun 14th, 15, 1:34 PM
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Re: 1970 Chevelle Legend700 5 Speed Install Info

Quote:
Originally Posted by JodysTransmissions View Post
I've been a little under the weather and slow getting pictures posted, but here is the Legend700 mated behind the ZZ502/502.

The transmission driveline angle has already been determined using the original crossmember. The Legend700 looks great in the "black calico coating".

Those are Dam Lemon's Headers and they are sweet!
they look great and show an even fit
I don't have the $$$ for them or the transmission though

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