Need to rent Differential Subframe Mount Bushing Removal Tool

[hansv1]

Looking to borrow/rent the differential to subframe bushing removal tool. My research has led me to the following tools that will do the job much easier than dropping the subframe etc.; either baum 966-0043 or SIR M0074.

Thanks,
Hans

 

[gsxr]

Hans, what year/model are you working on? I believe the diff mount tools SIR M0074 and Baum 966-0043 will only work with the smaller 4/5/6-cyl diff bushings, not the larger V8 bushings.

And, there isn't room for the tools without at least lowering the subframe. These diff bushings are very rare failures on V8 cars, btw. The smaller versions on the 4/5/6-cyl cars are a very common failure.

 

[JC220]

Personally I would drop the subframe and use a generic bushing puller tool on those. If you DIY this will be quicker and more cost effective in the long run too.

 

[gsxr]

Personally I would drop the subframe and use a generic bushing puller tool on those. If you DIY this will be quicker and more cost effective in the long run too.

...and the subframe bushings are far more likely to need replacement, vs the V8 diff bushings. Remember you must measure the exact location of the old diff bushings BEFORE removal, and install the new ones to the same depth. Otherwise the diff will be misaligned and stress the new bushings.

 

[hansv1]

...and the subframe bushings are far more likely to need replacement, vs the V8 diff bushings. Remember you must measure the exact location of the old diff bushings BEFORE removal, and install the new ones to the same depth. Otherwise the diff will be misaligned and stress the new bushings.

Thanks for the replies. 1992 400E. I have the rear end 'clunk' when engaging reverse, and when slowing to a stop (2nd to 1st downshift). Rebuilt transmission from Sun Valley put in about 100 miles ago; had the same noise prior to that though. BTW really pleased with their rebuild as others have noted in many other posts.

I think I'll go ahead and do as suggested, drop the entire subframe and do all of the bushing while in there. Looks to be fairly involved, but not any more involved than when I swapped the transmission.

 

[gsxr]

You can check the diff bushings pretty easily. Pry the diff around, if it moves substantially and you can replicate the clunking noise, you should be able to see if it's those bushings or not. I'd be surprised if this was the case, I've never heard of them failing like this on the V8, although it's VERY common on the smaller/wimpier non-V8 bushings. Check the rear flex disc too, and maybe the driveshaft center bearing/support?

If you drop the subframe, yep, replace everything with OE if possible. Be careful with aftermarket, even OEM, parts... some have changed to low-cost countries and the jury is still out on the kwality of the rubber bits from Turkey and whatnot.