CLASS RACER FORUM - View Single Post - NEED : Richmond Pro Gear 4.56 Ratio Chrysler 8.75 742 Case

GTX JOHN · 01-09-2020, 04:45 AM

I have only seem Pro 4.88's ratio in last 10 or 15 years for 742.

I broke last Pro gears in ten runs.

We have run regular gears last 10 years and always over
100 passes before they get loud and we take them out.

At 3400 Lbs our 340 Demons run 1.3x 60 Ft. times regularly.

My son has 456 / 488 /513 /538 Spools 742 Case for $750.00 Complete

He has gone to a Dana 60 now and they are extras. He says
Dana is 1 to 1 1/2 Hundred faster in his car = Maybe pinion angle.
He has around $3,000. in Dana.

01-09-2020, 04:45 AM	#5
GTX JOHN VIP Member Join Date: Jun 2009 Location: Boulder City, Nevada 89005 Posts: 2,737 Likes: 2,809 Liked 2,489 Times in 699 Posts	Re: NEED : Richmond Pro Gear 4.56 Ratio Chrysler 8.75 742 Ca I have only seem Pro 4.88's ratio in last 10 or 15 years for 742. I broke last Pro gears in ten runs. We have run regular gears last 10 years and always over 100 passes before they get loud and we take them out. At 3400 Lbs our 340 Demons run 1.3x 60 Ft. times regularly. My son has 456 / 488 /513 /538 Spools 742 Case for $750.00 Complete He has gone to a Dana 60 now and they are extras. He says Dana is 1 to 1 1/2 Hundred faster in his car = Maybe pinion angle. He has around $3,000. in Dana. __________________ John Irving 741 Stock 741 Super Stock Last edited by GTX JOHN; 01-09-2020 at 06:44 PM.