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Old 02-19-2020, 05:45 PM
Dick Boneske's Avatar
Dick Boneske Dick Boneske is offline
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Default '76 Trans Am

We're working on a '76 Trans Am restoration. It's a 4 speed car in which we're putting a '73 455 engine. A few questions came up when ordering parts from Ames.

First, the Borg Warner Super T10 we have has 26 splines on the input shaft, 32 splines on the output shaft. Ames catalog only goes up to '74, when Muncie was the only manual trans. Therefore, the clutch kits do not have the correct spline count. Do we just order an aftermarket 26 spline 11" clutch disc?

Second, there is no info on the air cleaner for the shaker hood. We need nearly all the pieces to assemble the air cleaner, scoop, PCV plumbing, etc. for the stock Quadrajet. Any ideas?

Third, is the stock '73 455 crank be machined to accept the pilot bearing for the Super T-10? The engine was in a TH400 Grandville.

Last, the replacement blower motor for the heater is much larger than the original one in the chassis. It looks like it will mount OK, but what do we do with the hole in the motor case for motor cooling.

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Last edited by Dick Boneske; 02-19-2020 at 06:05 PM.
  #2  
Old 02-20-2020, 01:16 PM
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I can help on the 1st and 3rd questions. I pulled the Ames website up and their part number FR695T clutch should work if your flywheel will accept an 11 inch clutch. Your stock crank should be machined for a pilot bearing. It should be part number FR696AF in Ames. If you go to a parts store such as O'reilly's for the bearing, it will be part number 7109.

  #3  
Old 02-20-2020, 05:36 PM
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Original flywheels in '76 did not have 2 sets of holes, for both diameter clutches. Chances are 90% Plus that it has a 10.5 inch clutch Flywheel. Be SURE the flywheel and balancer are for a 455. >> this is KEY from John Milner >"if your flywheel will accept an 11 inch clutch"

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Old 02-21-2020, 09:42 AM
TAKerry TAKerry is offline
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There is a good write up on trans am country about shakers and air cleaners. It may be in the mechanical section. There are many varieties of both and that thread shows all of the different combos. Sorry I dont know how to cross link between sites.

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Old 02-23-2020, 06:12 PM
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Somewhere around 76 or 77 that hole in the blower motor changed sizes. Both are readily available. Any parts store should have info to help you...

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Old 02-25-2020, 01:24 AM
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The blower motor from Ames came with plastic plugs for the motor holes. Can I use them without motor overheat problems?

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Old 02-27-2020, 04:10 PM
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What is the best source for radiator & brackets. I noticed Ames has a complete radiator kit which includes fan, fan clutch, shroud, etc. We need every piece, including core support.

Engine is medium mild 461.

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  #8  
Old 02-28-2020, 12:31 PM
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Quote:
Originally Posted by Dick Boneske View Post
Second, there is no info on the air cleaner for the shaker hood. We need nearly all the pieces to assemble the air cleaner, scoop, PCV plumbing, etc. for the stock Quadrajet. Any ideas?
eBay examples...
http://cgi.ebay.com/ws/eBayISAPI.dll...m=254475190190

http://cgi.ebay.com/ws/eBayISAPI.dll...m=274266531062


There were 3 air cleaner assemblies for the 4 bbl Firebirds in '76. A 350-4 bbl, a 400-4 bbl and the 400/455 Trans Am. The basic stamping of the base is probably the same between all three and will orient in correct position using a '75-up carburetor. The TA will probably have the square hole for the air breather in a different position than the other two. There should be a D hole stamped in the side for a valve going from a port on the vacuum tee thru the valve to a break valve on the carburetor ('75 has a similar hole but the D is turned). The bracket holding in the Auto-ThermAC diaphragm has straight edges on pre-'77 years. There is a flat stamping on the floor of the base for a sensor. Some have a hole for it, some don't (I'm thinking this is the difference between the 350 and the others).
The TA air cleaner lid has a wide lipped lid for the '76-up Pontiac 400/455 TA's for use with the A542C air cleaner filter. It is available in repop, but I wouldn't know about proper fitment. https://secure.amesperf.com/qilan/De...art_num=FN112S
Ames air filter (make sure it's correct though). https://secure.amesperf.com/qilan/De...part_num=FN150
The air ducting from the air cleaner snorkel is available in repop too.
https://secure.amesperf.com/qilan/De...part_num=FN114
https://secure.amesperf.com/qilan/De...art_num=FN113W
https://secure.amesperf.com/qilan/De...rt_num=FN114AB
https://secure.amesperf.com/qilan/De...art_num=FN252J
https://secure.amesperf.com/qilan/De...rt_num=FN114AC
Pre-heater elbow has casting 498539 and can be found on eBay with clamp easily enough. Ames does sell a similar clamp. https://secure.amesperf.com/qilan/De...art_num=FN406T
Pre-heater ducting hose can be purchased from Ames. https://secure.amesperf.com/qilan/De...rt_num=FN406RB
Don't see a pre-heater shroud listed.
There is a shaker hose fitting on Ames but not in correct plastic. https://secure.amesperf.com/qilan/De...art_num=FD157Q
Shaker drain hose on Ames. https://secure.amesperf.com/qilan/De...art_num=FD157R
Ames air breather. https://secure.amesperf.com/qilan/De...art_num=FN735C
Ames clip. https://secure.amesperf.com/qilan/De...art_num=FN735F
See picture below for vent pipe differences.
The Parts Place markets one on eBay http://cgi.ebay.com/ws/eBayISAPI.dll...m=351701920446
No picture from Ames. https://secure.amesperf.com/qilan/De...art_num=FN735R

Hope it's as clear as mud, LOL.
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Last edited by Held for Ransom; 02-28-2020 at 12:37 PM.
  #9  
Old 03-03-2020, 07:17 PM
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Quote:
Originally Posted by Dick Boneske View Post
The blower motor from Ames came with plastic plugs for the motor holes. Can I use them without motor overheat problems?
Well, I don’t know for sure, all the hose motors back then had the short rubber elbow going from that hole, to the case of the motor, to cool the motor. Never heard of eliminating the cooling tube...

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  #10  
Old 03-06-2020, 10:26 PM
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Matt Meaney Matt Meaney is offline
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Quote:
Originally Posted by Dick Boneske View Post

First, the Borg Warner Super T10 we have has 26 splines on the input shaft, 32 splines on the output shaft. Ames catalog only goes up to '74, when Muncie was the only manual trans. Therefore, the clutch kits do not have the correct spline count. Do we just order an aftermarket 26 spline 11" clutch disc?

.
For the 1971 model year (and all sub sequent years), the Muncie M20 trans was "upgraded" to have a 26 spline input and 32 spline output. same as a Borg Warner Super T10.

  #11  
Old 08-14-2020, 10:14 AM
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STEELCITYFIREBIRD STEELCITYFIREBIRD is offline
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My stock 76 400 flywheel takes an 11" clutch.
The late 1976 flywheel register( hole) is smaller than earlier cranks, so that will have to be opened if you have a late 76 flywheel.
HTH

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