tunerwithkids
Active member
I just installed a MaxJax M6K I got used on FB Marketplace. I got lucky and found a guy who moved and had only bought it 6 months before. It still had warranty because I had to get some new fittings (Both old female quickconnect springs popped out).

I had to gather all new hardware, I used real Wej-It PD58 (5/8-11) vs. the generic metric copies BendPak sends now. Originally ordered 2-inch Grade 5 bolts (same as 8.8 metric OE ones) with flat and locking washers. But due to my anchors setting lower than expected, I got new 2-1/2" Grade 8 (10.9 metric) bolts.
Anchors: https://www.amazon.com/Wej-PD58-Internally-Threaded-Diameter/dp/B002KI9AJM
Grade 8 (10.9) Bolts: https://www.amazon.com/gp/product/B003PKCP4G
Washers: https://www.amazon.com/gp/product/B074ZMZN3K
Lock Washer: https://www.amazon.com/gp/product/B000BQWXS0


The old owner used Teflon instead of liquid Loctite, MaxJax instructions specify only liquid, no Teflon. All the fittings were leaking when I got this and Teflon was all flaking off.
Loctite 545 Sealer: https://www.amazon.com/gp/product/B003XZB54O

My garage was 4-1/2 inch (drilled thru to dirt) on center side and at least 6-inch (didn't drill all the way) near the edge on the outer wall side. In Central FL, the monolithic slabs for concrete block homes all have thick edges to support the walls.
7/8 SDS Drill Bit: https://www.amazon.com/gp/product/B096NMW8BN
SDS Hammer Drill : https://www.amazon.com/gp/product/B07QW55TPV



I was worried about the Wej-It PD anchors after reading all the horror stories here, so I took some bad advice and tapped the anchors more than 5/8". I was closer to 1-inch and all my anchors grabbed well below the surface. I tried all I could to turn and pull them, but they grabbed and aren't going anywhere between 1/4" and 1/2" below surface. So if you holes are drilled tight and concrete is good, DO NOT tap more than 5/8-inch below surface. The anchor will grab and pull correctly at that depth. Going deeper will only set it deeper after the pull. All bolts torqued to 90 ft-lbs easily, checked them all again after letting car sit on lift overnight.
24mm Wrench: https://www.amazon.com/gp/product/B01J1KOQ7W
4-lbs Hammer: https://www.amazon.com/CRAFTSMAN-Demolition-Fiberglass-4-Pound-CMHT54163/dp/B07SFC1DGS



My full DIY video is posted on YouTube.

I had to gather all new hardware, I used real Wej-It PD58 (5/8-11) vs. the generic metric copies BendPak sends now. Originally ordered 2-inch Grade 5 bolts (same as 8.8 metric OE ones) with flat and locking washers. But due to my anchors setting lower than expected, I got new 2-1/2" Grade 8 (10.9 metric) bolts.
Anchors: https://www.amazon.com/Wej-PD58-Internally-Threaded-Diameter/dp/B002KI9AJM
Grade 8 (10.9) Bolts: https://www.amazon.com/gp/product/B003PKCP4G
Washers: https://www.amazon.com/gp/product/B074ZMZN3K
Lock Washer: https://www.amazon.com/gp/product/B000BQWXS0


The old owner used Teflon instead of liquid Loctite, MaxJax instructions specify only liquid, no Teflon. All the fittings were leaking when I got this and Teflon was all flaking off.
Loctite 545 Sealer: https://www.amazon.com/gp/product/B003XZB54O

My garage was 4-1/2 inch (drilled thru to dirt) on center side and at least 6-inch (didn't drill all the way) near the edge on the outer wall side. In Central FL, the monolithic slabs for concrete block homes all have thick edges to support the walls.
7/8 SDS Drill Bit: https://www.amazon.com/gp/product/B096NMW8BN
SDS Hammer Drill : https://www.amazon.com/gp/product/B07QW55TPV



I was worried about the Wej-It PD anchors after reading all the horror stories here, so I took some bad advice and tapped the anchors more than 5/8". I was closer to 1-inch and all my anchors grabbed well below the surface. I tried all I could to turn and pull them, but they grabbed and aren't going anywhere between 1/4" and 1/2" below surface. So if you holes are drilled tight and concrete is good, DO NOT tap more than 5/8-inch below surface. The anchor will grab and pull correctly at that depth. Going deeper will only set it deeper after the pull. All bolts torqued to 90 ft-lbs easily, checked them all again after letting car sit on lift overnight.
24mm Wrench: https://www.amazon.com/gp/product/B01J1KOQ7W
4-lbs Hammer: https://www.amazon.com/CRAFTSMAN-Demolition-Fiberglass-4-Pound-CMHT54163/dp/B07SFC1DGS



My full DIY video is posted on YouTube.
Last edited:











