Automatic Transmission 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits
Sponsored by:
Sponsored by:

Custom trans mount fab Q's

Thread Tools
 
Search this Thread
 
Old Jul 17, 2019 | 06:08 AM
  #1  
JayinMI's Avatar
Thread Starter
TECH Apprentice
 
Joined: Jul 2016
Posts: 349
Likes: 19
Default Custom trans mount fab Q's

I guess this would be the right place for this. I did a search but couldn't find anything quite like I was looking for.

I'm swapping an LQ4/4L80E combo into my '89 S10. For a transmission mount I'm using a Stiffler's tubular
trans mount from an SN95 Mustang. Since it it's as wide as the frame, I made brackets (that I welded to the frame)
for it to bolt to. It's just heavily tacked in at the moment.

I made the brackets like 2 years ago, and have been thinking of revising the design.

They are currently made of 1/4" steel, which is probably a) overkill and b) heavy.

So, I've been considering revising the design, drawing it up in Sketchup or other CAD type program and having
new ones water jetted or laser cut. I'm thinking 1/8" might be a more appropriate thickness for what I'm doing.

The eventual goal is 350-400 RWHP. No turbo, no transbrake, nothing crazy. It is going to be a cruiser/nice weather daily
with a couple of trips to the track a year, maybe.

Anyway, think 1/8" plate will be acceptable? Or should I go thicker?

Jay
Reply
Old Jul 17, 2019 | 07:19 AM
  #2  
MaroonMonsterLS1's Avatar
TECH Junkie
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2012
Posts: 3,615
Likes: 1,327
From: Iowa
Default

How about
A. a picture of how you have them currently
B. A design you have in cad just so we can see.

If you're using 3"x3" of 1/4 plate on either side of the frame...is it really going to be heavy? Seems like no biggie
On the other hand...I doubt the frame on that s10 is any heavier than 1/8" So the thinner plate is probably just fine
Reply
Old Jul 17, 2019 | 08:33 AM
  #3  
JayinMI's Avatar
Thread Starter
TECH Apprentice
 
Joined: Jul 2016
Posts: 349
Likes: 19
Default

I haven't designed them in Cad yet.

This is basically how I have them set up now (Except they're welded to the frame and I put a piece on top to connect the 2 sides.
My welder is a 135, and doesn't really like the 1/4" steel. That was the only photo I had handy.

Reply
Old Jul 17, 2019 | 10:35 AM
  #4  
MaroonMonsterLS1's Avatar
TECH Junkie
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Dec 2012
Posts: 3,615
Likes: 1,327
From: Iowa
Default

If you have a piece on top connecting the two sides...and that piece is welded to the frame...that will be PLENTY strong out of 1/8"
Reply




All times are GMT -5. The time now is 06:42 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE