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#1
07-09-2019, 03:18 PM
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Has anyone ever seens a short height Transmission Mount
for the 64-72 GTOs in factory bolt up or in a Poly type mount?
I saw a trans mount that was 1/2" shorter height but it did not have the right bolt up to the trans rear housing. Any info/help appreciated OPH or others?????? Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
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#2
07-13-2019, 10:38 AM
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I'd be interested in a mount like this, too. The driveshaft is very close to the tunnel and a lower trans mount would give added clearance.
I've described on other posts how I tweaked the center of the floor area by jacking using a wood 2X4 and floor jack. This resolved the u-joint hitting the floor problem, but I'd like a bit more clearance.
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BONESTOCK GOATS '64 GTO Tripower Hardtop (Wife's Car) '64 GTO Tripower Post Coupe (My Car) '99 Bonneville SE Sedan |
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#3
07-15-2019, 06:08 AM
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It sounds like both of your problems could be related to your front mounts. Is it possible that your front crossmember is "sagged"? I have seen numerous A-body vehicles where the engine oil pan is almost resting on the crossmember and the fan is rubbing the bottom of the shroud. One "fix" is to shim the front engine mounts to raise the front of the engine, which would obviously lower the rear some. Just a thought.
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#4
07-15-2019, 06:26 AM
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Another cause for clearance problems is a bowed transmission crossmember. I've replaced a couple that had scars from either lifts or floor jacks.
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#5
07-15-2019, 10:23 AM
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You can try this Chevy mount. It dropped my ElCo T400 down a bit.
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Ed 1968 GTO (Thanks Mom) 2006 Silverado 2007 Cadillac SRX 2015 Chevy Express  
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#6
08-22-2019, 02:58 PM
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I came across this mount from a 66 Chevelle 4 door muncie 4 speed. I bought the transmission that clearly had never been rebuilt.
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#7
08-29-2019, 08:35 PM
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That is the one that I heard about (that was shorter) but did not have an application to go with it. Thanks. Can you measure the difference in the two heights?
Tom V.
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"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
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#8
08-30-2019, 02:02 PM
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This is the one I just bought for my Lemans. In the comments there is mention of this being the only option available for obsolete GM #334528. Lowered by about 3/8”.
https://www.summitracing.com/parts/ens-3-1158g/
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Tom 1963 Lemans -428 +.030, SD Perf KRE heads, turbo 350, 9" Ford 3:90, 11.01@121 1956 Chieftain gasser, 461 stroked 400, SD Perf ported E-heads, turbo 400, Dana 3:70 10.40@125 |
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#9
08-30-2019, 05:10 PM
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Great Info, Thanks.
Tom V.
__________________
"Engineers do stuff for reasons" Tom Vaught Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward. |
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#10
08-30-2019, 10:46 PM
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Quote:
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1966 Lemans, 3700Lbs, 406 ci, #96 Heads, Crane 467/494 cam, RPM Intake, Q-Jet, 11 inch Converter, 3:90 gears, 3 inch exhaust, Best ET 12.62@107 MPH 414ci shortblock coming soon! |
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#11
08-31-2019, 07:23 AM
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Quote:
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#12
02-08-2020, 04:02 PM
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Is the Pioneer 622295 mount the short mount you are looking for or the 66 Chevelle 4 door mount? Or are they the same mount? I'm in the same situation, my driveshaft in my 65 GTO is close to the tunnel and sometimes it hits. The motor mounts also need to be changed as the oil pan is close to the centerlink. Trying to find motor mounts that are stock height as I here the offshore mounts today make the engine sit lower than stock. Figure I need a shorter trans mount to compensate. This is for a 4 speed. In the future I'm planning on a larger driveshaft with 1350 yoke so I definitely need the space.
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#13
02-08-2020, 08:18 PM
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#14
02-10-2020, 01:16 PM
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Trans Mount
Quote:
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62' Lemans, Nostalgia Super Stock, 541 CI, IA2 block, billet 4.5" crank, Ross, Wide port Edelbrocks, Gustram intake, 2 4150 style BLP carbs, 2.10 Turbo 400, 9" w/4:30 gears, 8.76 @153, 3100lbs |
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