833 Bearing Retainer Sizes

Can anyone tell me what the size of the bearing retainer and bell housing hole size is for a 833 OD unit. I have a Duster equipped with a OD unit and want to change to a true 4 speed. The tranny I am looking at has a 4.80 inch diameter bearing reatiner. Can I use the bell housing I have or do I nned to get a different one?

If you have the 308 front bearing, 4.16 bolt circle 4.805 bearing retainer, the bolt pattern is the same so all you have to do is switch to the 5.125 bearing retainer. If you have the 307 front bearing, 3.70 bolt circle, 4.805 bearing retainer Brewers Performance has a 5.125 bearing retainer that should bolt on. I have extra 5.125 bearing retainers, with the 4.16 bolt circle, if anyone needs them.