Here is the KAZZ Engineering E36 Rear Differential Brace Kit!
This is a new product we’re offering for any E36 (except compact). Stop worrying about your diff being the weak link!
What is included?
-Differential cover brace plate
-Differential bushings (3 piece)
-New hardware including upgraded M14 high tensile front diff bolt
Optional
-Drill bit and tap included for M14 thread upgrade
About the material…
The brace plate is profile cut and CNC bent by our extended professional team in Brisbane, Australia – from 5mm steel – and then powder coated blue.
The bushings are all delrin and limit all unwanted movement from your differential mounting points.
What’s the point…
The rear differential mounting usually fails through one of two modes. The front differential bolt will shear, or the cast aluminium mounting ears will snap.
The singular front differential bolt acts as a pivot point when the differential is shock loaded (typical when clutch kicking). It is evident that the differential will pivot about this point when the standard bushings are fatigued. The movement from the differential leads to the front diff bolt to soon fail. It is common for people to upgrade this bolt from a low tensile M12 bolt to a high tensile M14 bolt like that supplied in our kit. To complement this upgrade, we offer our front diff bushing with a 14mm bore to accomodate for the larger bolt.
Unfortunetly, it is common to see the cast aluminium rear covers snap once the front diff bolt is upgraded. To bulletproof this part and eliminate all weak links in the differential mounting system – we offer this diff brace which perfectly conforms to the rear cover. Also, we do not recommend installing solid diff bushings without this reinforcement.
TLDR;
Upgrade your bushings, mounting bolts, and reinforce the fragile cover for more clutch kicks!
Install tips…
1) We strongly recommend all products are installed by a qualified mechanic
2) Use the hardware supplied
3) You will have to drill the original front differential hole to 12.5mm and then use a M14 x 2.0 tap to cut the new thread. Alternatively, you can use our bolt with a nylock nut but you will need to remove material from the differential housing to gain clearance for the nut.
4) The KAZZ Engineering bushings are unique and are designed to be designed easily without the need for any speciality tools. The geometry of the bushings feature a stepped diameter. This means you can easily push the first 20% of the bushing inside the housing. This allows you to easily get the bushing orientated and ‘in there’. At this point the diameter is increased for a tight interferance fit. You can now press the rest of the bushing into the housing.
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