700R4 gear question
Thread Starter
Le Mans Master
Joined: Nov 2009
Posts: 6,882
Likes: 234
From: Bangkok, Thailand
700R4 gear question
The thread about gearing with a 383 brought back a previous question I had but never asked - does anyone make a "better" gear set for the 700R4? Something with closer ratios like the Chrysler OD transmissions have?
The A500 has:
1234R2.741.541.000.692.21
The A518 has:
1234R2.451.451.000.692.35
Seems to me like the gears out of a 200R4 would work better for us:
2.74 1st gear, 1.57 2nd gear, 1.00 3rd gear, .067 4th gear
They used the 200R4 in the Buick GN's so they must be able to handle some TQ.
Any ideas?
The A500 has:
1234R2.741.541.000.692.21
The A518 has:
1234R2.451.451.000.692.35
Seems to me like the gears out of a 200R4 would work better for us:
2.74 1st gear, 1.57 2nd gear, 1.00 3rd gear, .067 4th gear
They used the 200R4 in the Buick GN's so they must be able to handle some TQ.
Any ideas?
Last edited by mcm95403; Sep 27, 2012 at 07:53 PM.
Race Director
Joined: Jun 2004
Posts: 13,961
Likes: 707
From: WI
There is an alternate gear set sold, I believe it it was released about two years ago. I looked around last week as I was considering some changes and they are still around $2,000 IIRC. I remember back when it was being developed Pete K had a set to test but I don't remember any follow up.
Thread Starter
Le Mans Master
Joined: Nov 2009
Posts: 6,882
Likes: 234
From: Bangkok, Thailand
There is an alternate gear set sold, I believe it it was released about two years ago. I looked around last week as I was considering some changes and they are still around $2,000 IIRC. I remember back when it was being developed Pete K had a set to test but I don't remember any follow up.
Ouch. Seems like it would be easier to mod the tailshaft on a 200R4 to fit to the c-beam. I'm sure it wouldn't be too tough to figure out a flexplate, starter, etc. The 200R4 has the universal bellhousing as well so it will bolt right up. I'm guessing the yoke might be different between the two.
Last edited by mcm95403; Sep 27, 2012 at 09:41 PM.
