73-87chevytrucks.com

73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: 1976Scottsdale on March 29, 2008, 06:55:12 pm

Title: Got my ring and pinion swapped, still locking up early
Post by: 1976Scottsdale on March 29, 2008, 06:55:12 pm

Okay, so I swapped out my 2.73 rear gears for a 3.73 set about an hour ago.  I still hit converter lockup at about 25mph.  Will this improve if I install a ratio adaptor?

Title: Re: Got my ring and pinion swapped, still locking up early
Post by: dumbucket1 on March 29, 2008, 08:35:09 pm

sorry I cant answer your question but is your truck accellerating much better now? just wondering as Im probably going to change the 3.08's in my blazer to 3.73's

Title: Re: Got my ring and pinion swapped, still locking up early
Post by: VileZambonie on March 29, 2008, 09:46:15 pm

adjust your tv cable

Title: Re: Got my ring and pinion swapped, still locking up early
Post by: Lt.Del on March 29, 2008, 10:13:51 pm

I'd like to change out my 3:08 to a 3:73, or even a 4:10.  My lock up converter hits at 38mph...I want some more rpm's out of her.

Title: Re: Got my ring and pinion swapped, still locking up early
Post by: Fordeatinz71 on March 29, 2008, 10:19:11 pm

i'd like to hear how she performs now too, as i'm wanting to change out my 2.73's...just don't know if i'm going to 3.73's or 4.10's...

Title: Re: Got my ring and pinion swapped, still locking up early
Post by: 1976Scottsdale on March 30, 2008, 12:40:44 am

That thing will flat out scoot.  She can't quite break the tires loose, but that is most likely timing since I can hear the engine ping when I stomp it.  I'll adjust the TV cable and see how the lockup goes.  But yes, there was a very noticable improvement... best of all, its not howling at me or anything.