Transmission Help or REPLACEMENT
Thread Starter
Pro
Joined: Apr 1999
Posts: 533
Likes: 6
From: Poinciana Florida
Transmission Help or REPLACEMENT
I have a 93 vert which is a grocery getter located with me in Central Florida. When I supercharged the stock engine I hit about 430 rwhp. It was a fun car to drive. After losing the rings, I went the 383 stroker route and reached 598 rwhp. As added protection I added a D44 rear end. I foolishly did not consider THE GEARING IN THE 700r4 tranny. As such,I could never control the power in First Gear. Other than a Powerglide tranny were/are any options available to me?
Melting Slicks
Joined: May 2014
Posts: 2,894
Likes: 592
From: New Port Richey FL
I to live in the center FL area and I saw these guys at just about every large truck/car show and they say they can build some tough transmissions for whatever you have
https://monstertransmission.com/
https://monstertransmission.com/
Le Mans Master
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
As far with a overdrive automatic there isn't a straight bolt in the 700r4 aka 4l60 is it. A 4l80e with its 2.48 1st gear could be beneficial but it's larger in size and requires a fabricated mount for the C beam, as every other transmission. D44 was available with a 3.07 ratio may help if you installed a 3.45 or 3.54. You will still be able to the tires off with a 3.07. You could try to soften the tune in first gear. The 700r4 used a second gear switch to enable tcc it could also be used enable a change in the tune.
Melting Slicks
Joined: Feb 2003
Posts: 2,677
Likes: 812
From: Saskatoon Sask.
If the 3.06 gear is too tall for you, this can be rectified with the Sonnax planet change. It gives you a 2.86 1st and 1.55 second ratio.
Team Owner
Joined: Sep 2003
Posts: 25,393
Likes: 2,741
https://www.sonnax.com/tech_resource...es#ratiochange
