Need Glide Help---trashed planetary

Old 06-11-2008, 04:20 PM
Junior Member
Thread Starter
Join Date: Jul 2005
Posts: 1
Default Need Glide Help---trashed planetary

I am new to Powerglides, but need a little advice. I just found my planetary gears ripped apart and in a million pieces. I have a 2700 lb full chassis door car, with a 705 hp BBC. This Glide has the turbo input shaft, I guess stock planetary as they are NOT straight cut gears. I know a complete dissassembly is in order, but will I need to replace my converter.
And what would be your suggestions to parts to put back. I will probably stop building the motor at 1200 hp. by the time I'm done. Thanks in advance .
suburbob is offline  
Old 06-11-2008, 04:30 PM
Senior Member
Join Date: Jan 2007
Location: atwood,Ky
Posts: 302

by the time you buy all the parts to handle 1200hp you would be better off buying a complete glide to handle what you want and it would be cheaper,yes you need to at least send your convert off & have it checked.(better safe than sorry).good luck
john858 is offline  
Old 06-11-2008, 05:22 PM
Senior Member
jmarksdragster's Avatar
Join Date: Jul 2007
Location: Florida
Posts: 635

Buy good planetaries, and the converter will need to be cut open and inspected.
jmarksdragster is offline  
Old 06-11-2008, 05:31 PM
Senior Member
Join Date: May 2003
Location: Owingsville, Ky
Posts: 157

The powerglide has two different ratios that are stock. One is the 1.82, which is the light weight version (I broke a set on a 2800lb car running 10.00's). It has a stamped steel planetary housing and the input shaft measures 12 5/8" long. The second version is stronger and it is the 1.76, which has a thicker cast planetary shell and the input shaft is 12 7/8" long. I have run the 1.76 version in a 2650lb car that ran 8.90's. What finally broke it was when the rear gear broke and locked up the rear end, the output shaft of the planetaries was twisted off, but the gears were still fine. I now have the 1.80 straight cut gears and they cost about a 1000.00 several years ago.

What ratio was your gear set? Usually the one that breaks at that hp level is the 1.82, because the 1.76's can handle a good amount of hp (not the 1200 but usually 800 or so).

Yes, you will want to send off your torque converter and flush your trans cooler and lines.

Bill M
sp2816 is offline  
Old 07-19-2008, 09:50 PM
Senior Member
Join Date: Oct 2005
Location: Wellington , New Zealand
Posts: 122

Definatly use a 1.80 straight cut gear set with forged output shaft. You proberly had a 1.82 cast gear set.
jrthone is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -