Mopar Muscle Association UK

Yes I read all the bad reports on the green bearings about ten years ago.

Here's what the guru Dr Diff has to say

<<Unfortunately, the original Mopar Green wheel bearing design has 2 problems.

First generation (RP-400) Green bearings, still sold by Mopar Performance and others, are problematic because the crimped-on flange will not allow the bearing to wiggle around inside a housing that is not perfectly straight (none are).

In addition, the design causes the axle to be inserted DEEPER into the housing than necessary. This results in pre-loading against the differential thrust block and early bearing failure.

Second generation (MO-400) snap-ring style Green bearings are forgiving because they can move around inside the housing and they do not preload the differential thrust block in a stock application.

Most guys who have problems with Green Bearings are running the RP-400 first generation version or incorrectly made aftermarket axles or housings or poorly designed rear disc brake kits, all of which cause pre-loading and premature bearing failure.

I have several customers running MO-400 snap-ring Green bearings in daily drivers. The design is no different than what came stock in millions of other vehicles, including ’60s era Mopar 7.25″ and Ford 9″ rears. I do not stock, nor do I recommend the first generation RP-400 Green bearing with the crimped-on 5 hole retainer. I only carry the “loose fit, snap ring style” second generation MO-400 design.>>






As Martin says, it appears the standard oil sealing can be an issue in circuit racing. I'm still getting a little leakage through the stock seals after replacing with new, and improving the axle breathing. So I thought I'd give the green bearings a go (also with a view to reducing end float)

Apparently the later snap-ring version of the Green Bearings was designed after input from Moser. Which should be worth something, I guess.

If money were not an issue, Strange do a proper full-floater kit that also allows toe-in and negative camber adjustments!

Realised this morning that i hadn’t checked whether the thrust button had become displaced during the halfshaft removal. Had visions of it getting caught in the diff gears, so pulled the halfshafts again to check. Shone a torch down inside the axle and Sure enough, the right hand half of it wasn’t there !

Just as i was resigned to pulling the centre section, I thought i’d try using a magnet to fish around for the thrust button.

Left hand side came out of its recess ok !



And after about a minute of fishing around the bottom of the axle, result with the the other half !

A guy I know who used to race a Z28 camaro in the thunder saloons back in the mid 70,s he said they used to bend the axle cases in a press to give a touch of negative camber he said if you were lucky the bearings would last the race

Interesting info there Matt,Not something Ive looked into for years,I always check theres no butting of halfshafts in centre though

Finally fitted the Minilites and some new race tyres . Now that’s the look i’ve been waiting for ! I think the rear needs lowering just a little then I’ll have properly nailed it

That looks the nuts

kma176 wrote: Thu Feb 27, 20 1:25 pm That looks the nuts

i agree

Wow, that looks absolutely superb. Just what it needed and a good stance.

Agreed that looks ace

Tyre bulge rules! Got that on my 340 now.

Ace

Looks like there is the possibility of a Trans-Am race series at UK circuits, maybe next year. Apparently Julius Thurgood/HRDC are involved.

Fingers crossed it happens.

Instagram trans_am_gb

If anyone needs contact details, let me know.

I assume that is the "Julius" that did the $3.5M '71 Hemi 'Cuda??

...and bought two of my "Wing cars"??

Different Julius ?