Register or Log In To remove these advertisements. |
|
|
|
Thread Tools | Display Modes |
|
02-12-2008, 09:45 AM | #1 |
Son of a gun
Join Date: Jan 2007
Location: Hot Springs, Arkansas
Posts: 1,636
|
What flexplate for newer motor, older trans?
I am putting a 1989 model 350 in my 69, hooking it up to my th350. The 350 has the one piece rear main seal, and the smaller bolt pattern on the rear of the crank. What flexplate should I use?
Will one from an 89 chevy truck with automatic trans mate up OK to my stock th350 converter, and work with my starter?
__________________
Bill BEATERS ARE NEATER |
02-12-2008, 12:53 PM | #2 |
Son of a gun
Join Date: Jan 2007
Location: Hot Springs, Arkansas
Posts: 1,636
|
Re: What flexplate for newer motor, older trans?
anybody?
__________________
Bill BEATERS ARE NEATER |
02-12-2008, 01:01 PM | #3 |
Senior Member
Join Date: Nov 2004
Location: Vacaville, CA
Posts: 2,272
|
Re: What flexplate for newer motor, older trans?
I got one from a 700R4 from the tranny shop and it worked great. The 89 should work fine, mine was a 91 with a 4L80e so I had to get another one for the 350 that I had.
|
02-12-2008, 07:08 PM | #4 |
Active Member
Join Date: Jul 2003
Location: Boise Idaho
Posts: 296
|
Re: What flexplate for newer motor, older trans?
My th-350 bolted up to stock 1988 TBI motor/flex plate without any problems.
__________________
1971 SWB SOLD
|
02-12-2008, 10:53 PM | #5 |
Son of a gun
Join Date: Jan 2007
Location: Hot Springs, Arkansas
Posts: 1,636
|
Re: What flexplate for newer motor, older trans?
Great! thanks guys!
__________________
Bill BEATERS ARE NEATER |
02-12-2008, 11:43 PM | #6 |
Parts and more parts
Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
|
Re: What flexplate for newer motor, older trans?
I change out my flexplates to a heavier SFI rated plate, whenever I go into a tranny change or engine change. The factory plates have had to many issues with cracking and making have to go back and do the change out on the flexplate. I even had an issue on my 91 Silverado of the flexplate rubbing on my aftermarket starter gear at road speeds. The balooning of the torque converter caused the flexplate to move forward and rub the starter. A heavy duty flexplate (note: with dual bolt patterns) did the trick and the rubbing stopped. The dual bolt patterns covers the different converter patterns.
|
Bookmarks |
|
|