How to support transmission? - Chevy Impala SS Forum
 
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post #1 of 8 (permalink) Old 10-05-2010, 11:55 PM Thread Starter
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How to support transmission?

Perhaps some naive questions.... I may need to replace the transmission mount on my 94 RMW. Before I paint myself into a corner, is there a best way (or a least damaging way) to support and elevate the transmission away from the cross member? Or is it obvious? And while I'm asking questions, to replace the tailshaft seal, better on the car or better to remove the tail piece from the rest of the tranmission, and if the latter, how to hold the transmission up in the meantime? Thx.
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post #2 of 8 (permalink) Old 10-06-2010, 12:24 AM
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I've always used a floor jack, with a piece of 2x8 lumber to support it under the pan. That way, you can lift it up to remove the crossmember, swap the mount, and replace the rear seal. I've never replaced a seal with the trans under the car, so I'm not sure how roomy/comfy it is to do that under there. I'd be tempted to remove the tailshaft housing, and replace the seal on the bench.


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post #3 of 8 (permalink) Old 10-06-2010, 08:43 AM
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Everything HuSSker said, plus:

I would also unbolt the exhaust at the rear of the cats so you don't stress those joints too much.

"The unexamined life is not worth living." - Socrates
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post #4 of 8 (permalink) Old 10-06-2010, 08:46 AM
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On a somewhat related note: I have a tubular crossmember; in preparation of doing my whole catback (actually headers, cats and back), I can take out the stock crossmember and leave the stock exhaust on untill I get my exhaust from Dan - true?

95 Impala SS, 79K, 304SS GEN II TRI-Y, 304SS CIA exhaust, tubular xmember, throttle body bypass, 160 t-stat, stealth bolts, LT4 KM, PCMFORLESS tune, Gary's cables, vette starter, 3.5MAF, RAISS, Racetronics, 55W 5000K DDM HIDs, s10 oil pressure sensor, AIR delete, Hotchkis springs/Bilstein shocks, lt4 composite valve covers.
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post #5 of 8 (permalink) Old 10-06-2010, 08:50 AM
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Yes, but you're not saving any work. Just wait until the exhaust shows up.

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post #6 of 8 (permalink) Old 10-06-2010, 08:54 AM
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(sigh)

95 Impala SS, 79K, 304SS GEN II TRI-Y, 304SS CIA exhaust, tubular xmember, throttle body bypass, 160 t-stat, stealth bolts, LT4 KM, PCMFORLESS tune, Gary's cables, vette starter, 3.5MAF, RAISS, Racetronics, 55W 5000K DDM HIDs, s10 oil pressure sensor, AIR delete, Hotchkis springs/Bilstein shocks, lt4 composite valve covers.
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post #7 of 8 (permalink) Old 10-06-2010, 11:13 AM
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Quote:
Originally Posted by sherlock9c1 View Post
Everything HuSSker said, plus:

I would also unbolt the exhaust at the rear of the cats so you don't stress those joints too much.
Ah YES! At the very least, loosen those 4 bolts.


'94 Impala SS
#14 of all TRI-9 Impalas
SSRI
Kore3 C5 front brakes
WX3 Performance C5 rear brakes
Hotchkis springs/bars/rear LCAs
Herter tuned
CIA Quad 1 Cermachromed headers
Muffler Man stainless X-pipe/Dynomax UltraFlo mufflers
Street Trends Smoked Euro Head Lights
RMCR rear with Trutrack and 3.42 gears

"Up front there ought to be a man in black"--Johnny Cash
"Is there anything beer CAN'T do?"-- Hank Hill
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post #8 of 8 (permalink) Old 12-13-2011, 02:31 AM
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be careful when u jack up the tranny. u dont want to put the weight of the car on the transmission pan! i just install my engine few hours ago with the tranny on and had trouble putting the crossmember back on. any pictures of how it's removed so i could figure out how to put em back in?

(95 caprice classic tow package! 3.73, 1.6RR, beehive springs, HOTCAM, airbox delete, K&N air filter, removed mechanical fan and install electrical fan, tuned
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