WTB Mopar 8 3/4 ring and pinion

Max Wedge · 09-09-2017, 10:43 PM

Looking for a 4.71 ring and pinion for a 489 casting 8 3/4 Mopar rear end.

Thanks

Paul Precht · 09-11-2017, 12:08 AM

I've never heard of a 4.71 ratio for 8 3/4 but I have a Richmond 4.75 for a 742 housing with about 5 runs on it that I may consider selling.

Max Wedge · 09-11-2017, 10:20 PM

I was told 4.71; probably is a 4.75.
I use a 489 case. Thanks anyway. I'll keep looking.

Paul Precht · 09-12-2017, 04:34 PM

Quote:

Originally Posted by Max Wedge

I was told 4.71; probably is a 4.75.
I use a 489 case. Thanks anyway. I'll keep looking.

I don't think any were made for the 89 housing. Jerry Stein had 50 sets made for the 42 housing almost 30 years ago and I think whatever is around from that lot is all there is.

09-09-2017, 10:43 PM	#1
Max Wedge Junior Member Join Date: Oct 2002 Posts: 24 Likes: 0 Liked 0 Times in 0 Posts	WTB Mopar 8 3/4 ring and pinion Looking for a 4.71 ring and pinion for a 489 casting 8 3/4 Mopar rear end. Thanks

09-11-2017, 12:08 AM	#2
Paul Precht Senior Member Join Date: Dec 2001 Location: Elysburg, Pa Posts: 690 Likes: 281 Liked 224 Times in 89 Posts	Re: WTB Mopar 8 3/4 ring and pinion I've never heard of a 4.71 ratio for 8 3/4 but I have a Richmond 4.75 for a 742 housing with about 5 runs on it that I may consider selling.

09-11-2017, 10:20 PM	#3
Max Wedge Junior Member Join Date: Oct 2002 Posts: 24 Likes: 0 Liked 0 Times in 0 Posts	Re: WTB Mopar 8 3/4 ring and pinion I was told 4.71; probably is a 4.75. I use a 489 case. Thanks anyway. I'll keep looking.