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I'm having a 73 8-3/4 truck housing cut down to fit my Cuda a little narrower than stock to pull my wheels in and center them up and the truck axles are long enough to cut and re-spline and use. My question is if this is a good idea or not because my engine is a real torquey 408. If I'm not...

Does anyone here know if the engine to trans. torque bracket (drivers side) is the same for a 904 and 727 trans?

I recently picked up a 10" converter for a 727 from a guy that claimed it was a Turbo Action converter. I looked it over good but I didn't see any name on it but it does have some numbers. The price was right so I took a chance. Now I can't seem to find these part numbers listed for any major...

Can anybody give me the measurements to make some thrust blocks for my 8-3/4 Dana power lock sure-grip. I have the hardened rod and access to a lathe but don't know the measurements. Thanks, Tracy

Got a question for you guys that have narrowed a 8-3/4. A buddy of mine is about to narrow one 3" on each side and we need to know if we can still use the stock seals and bearings or do we need to go to the green bearings? I'm thinking since 3" will be cut off the end the inner seal won't be...

A buddy of mine bought a 8-3/4 housing and set of Yukon axles with green bearings already pressed on from a guy and the seller said he no longer needed the inner axle seals because the green bearings are sealed. Can anybody tell me if this true or not? To me it looks like the Ford 9" setup with...

Ok I bought everything new to rebuild my 742 case 8-3/4 including a clutch kit for the sure grip, all new bearings, and a gear set. No problem rebuilding the sure grip but I've ran into a problem getting the right pattern on the gears. BTW: Their Motive Gears brand. I don't have a pinion depth...

I picked up a clutch type sure-grip unit for my 8-3/4 to replace the worn out cone type and I ordered a Mopar rebuild kit for it so everything would be fresh. Just got it in today and I took it out of the package too look at it and it has the same amount of discs in it as the unit does but I...

I'm getting my car dialed in and I believe when I get some slicks on it it'll be in the mid 12 sec. range. When I was underneath it measuring the pinion angle the other day it dawned on me I still have the stock bolt and strap type u-joint retainers. I'm concerned they may not hold up to slicks...

I've seen 10 spline and 29 spline pinion gears advertised for the 489 case and I don't know which one I have. Does anybody know how to tell what spine yoke you have without first disassembling the rear? It's the narrow yoke if that makes a difference. I'd like to order new gears for my 489...

OK the one thing I don't have much experience with is the different sure grip units. My questions are what is best (cone type or clutch type) and what will interchange into what carriers. Can you use either the cone or clutch in any carrier (741,742,489)?? Or do certain carriers only accept...

I'm getting ready to rebuild my trans. (727) for my Cuda and will install a shift kit. I see the Trans-go TF-3 converts to full manual valve body but I can't find anything anywhere that says if it still applies the band in low. Does anybody know? I don't want something without low gear band...